Slashdot Mirror


CNN Asks "Can You Hack Back?"

dboothe writes: "CNN.COM has a somewhat interesting article on whether or not it is okay to fight back when being hacked. In the scenario they bring up with the WTO website, it seems pretty clear that they likely should have steered clear, working on the probable assumption that the IP address used was just a dummy machine that had been cracked previously. But what about other situations where it's more of a grey area?"

207 comments

  1. Moot by ViceClown · · Score: 3

    This is a moot point. Any cracker worth their salt is going to be behind so many machines that attacking back will be impossible without some for-real research and tracking. Just my $0.02.

    --
    Have a Happy.
    1. Re:Moot by skinhead · · Score: 1

      True, but what about those script kiddies that actually are on their machines? If cracker leaves the door open, should you hit back?

      --
      When you smile, the world laughs at you.
    2. Re:Moot by josh_freeman · · Score: 3

      I am a system admin for a lab in an educational institution, and I can say that I'm pretty certain I would be nailed to a tree if I tried this. First, it is probably illegal. Fun, but still illegal. Second, since I am on a subnet, everyone else in my institution would be bogged down because of the increased traffic. Lastly, the previous poster is certainly right that in almost all cases a cracker won't be as daft as to use one IP address to launch a DOS attack. But it's fun to contemplate. . . .

    3. Re:Moot by DrgnDancer · · Score: 1

      How do you know the script kiddie is on his own machine? There is no way to know what is going on in "Target" machine's CPU. Maybe it's a script kiddie, maybe it's a zombie setup to look like a script kiddie. The risk of a lawsuit from the counter attacked machine's owner (actually even if he IS the script kiddie since there is no "self defense" clause in computer security laws) is to high to risk it.

      --
      I don't need a million points of light, just two points of multi-mode fiber and a 10 Gig-E router.
    4. Re:Moot by E/M+Pulse · · Score: 1

      Moot: adj. 1. subject to argument or debate. Therefore, your use of the word here in wrong.
      <p>
      That's a British English vs. American English difference. In the US it means "not worthy
      of debate".

    5. Re:Moot by IRtechnocrat · · Score: 1

      I wanted a couple of years ago to start a group called hackthehackers.org. The purpose would have been to hunt down hackers and make them have very bad days using the same techniques that they use against other people. We would take over the #irc destroy there web site, run up there long distance bill, use there calling card, and whatever else we could think of.

      I decided this was unethecial and in general just a bad Idea for the following reasons:

      1. Hackers are not bad people they just are curious and good at finding holes.

      2. Hacking the hackers would esentially bring the wrath of the computer god on you.

      3. You are know better and are breaking the law in exactally the same manner.

      But It would be a lot of fun!!!

      IRTechnocrat

    6. Re:Moot by MonkeyMagic · · Score: 1

      That's a British English vs. American English difference. In the US it means "not worthy of debate".

      I'm English and I also thought it meant "not worthy of debate." Do I watch too much American T.V.?

    7. Re:Moot by cascadefx · · Score: 2

      I agree completely. Just based on information gained from the packets/messages coming to your site (ie the ip address of the packets mentioned in the article), you really have nothing in the way of SOLID proof. That takes more work and generally a face-to-face confrontation (at some point).

      Unless IP is going to start carrying cryptographically secured copies of fingerprint or DNA information, which can then be cross-referenced with that new international database we know they are building, you can never be sure.

      my $0.02, which I guess adds up to $0.04 now

    8. Re:Moot by bonehead · · Score: 1

      But you swat a mosquito when it bites you, don't you?

      :-)

    9. Re:Moot by Farq+Fenderson · · Score: 1

      I think it's worse than this. My suspicion is that those advocating this kind of action are 'kidz' who read bugtraq that need an excuse to DoS something.

      Honestly, knocking out a machine is NOT going to get you anywhere when you're under attack. It *will* add to the traffic on your network, which is the problem in the first place. Drop the offending packets at the router / switch / firewall / tin-cans-and-string / whatever.

      DoSing a machine in blind retaliation is pretty stupid -- if you hear a gunshot and fire 'in the general direction' you heard it is obviously not a good idea. Neither is this.

      ---
      script-fu: hash bang slash bin bash

    10. Re:Moot by roryi · · Score: 1

      Usage generally goes something like:

      "that's a moot point..."

      Meaning, that the point in question is debateable, and therefore not worth basing one's argument upon.You could just as easily say:

      "that's debateable..."

      But, when this topic's concerened, I don't think there's much room for debate - retaliating against the average Black Hat is doomed to failure, or at least is bound to cause more damage to innocent bystanders than most people would consider acceptable.

      --
      http://www.klub.org/
    11. Re:Moot by bonehead · · Score: 1

      How do you know the script kiddie is on his own machine?

      I'd say opening a talk session with the person logged into the console of the attacking machine and having a conversation with the little bastard could be considered sufficient evidence of having the right machine. Also, capturing keystrokes from the console of the attackers box and watching those commands execute on your machine.....

      There are ways to be sure. You'll probably have to root his box to have that certainty, though. Which brings up the whole "sinking to his level" issue.

    12. Re:Moot by LF11 · · Score: 1

      if you hear a gunshot and fire 'in the general direction' you heard it is obviously not a good idea.

      Not a good comparison. The person I see (or hear) firing the gun is the person firing the gun.

      FYI, if someone is firing a gun at me, I sure as hell will fire back, if I can see the person firing. If not, I'll take cover. If I just *hear* a gunshot, there's no reason at all for me to fire back.

    13. Re:Moot by Farq+Fenderson · · Score: 1

      Fine. But, you can't see who did it on the net. All you get are packets. Packets constructed by the gunman. Packets that say 'he did it'. Pay attention next time.

      ---
      script-fu: hash bang slash bin bash

  2. Not Really Hacking Back by jyuter · · Score: 2

    If you have an automated defense system, I don't see as how that is "taking the law into your own hands," you are just protecting your system against intuders and ensuring they won't come back. If you wait a while and then go after their server, that seems more like revenge IMHO.

    1. Re:Not Really Hacking Back by MarkKomus · · Score: 2

      So if someone breaks into my house and I notice it, is it alright for me to leave at the same time and go to their house to rob it? If a scam artist rips of my grandma is it alright if I call his grandma and rip her off?

      An automated defense system that attacks back is walking a very fine line. Just because someone does it to you, definatly does not make it legal to do it back.

      Though it is interesting to consider what "reasonable force" might consistute. Just as if someone physically attacks you, you can respond with enough force to stop them.

      But as the article was warning if the person is faking their IP the analogy would be like being attacked on the street and beating up some 3rd guy for it. You're going to get in a lot of trouble for it.

    2. Re:Not Really Hacking Back by Rastralcaz · · Score: 1

      Automated defense systems are typically designed to parry crack attempts, not offer retaliatory strikes. In the case of a spoofed IP address or other concealment methods, it's entirely possible an automated retaliation could strike at an innocent machine rather than the guilty party. Somehow I doubt I'd enjoy being the target of a lawsuit if someone figured out how to make my automated "defense" system knock out a third party.

      --
      Experience is that marvelous thing that enables you to recognize a mistake when you make it again.
    3. Re:Not Really Hacking Back by DrgnDancer · · Score: 1

      It's a very fine line. The "Zombie Zapper" they mention looks cool. It just tells the zombie to stop sending packets... that is defense. Slamming the attacker with a counter DOS would not be purely defense, you are attacking the zombie as surely as the original hacker did. Since most zombies are in educational institutions, you are basically attacking a university to defend yourself (from what I know of the laws of war, you might have a hard time justifiying that in war time, much less under ordinary circumstances).

      --
      I don't need a million points of light, just two points of multi-mode fiber and a 10 Gig-E router.
    4. Re:Not Really Hacking Back by bonehead · · Score: 1

      If someone breaks into your house and starts shooting a gun at you, is it OK to grab your gun and shoot back?

      Of course it is.

    5. Re:Not Really Hacking Back by MarkKomus · · Score: 1

      Yes it is, but if someone breaks into my house and I just pull out a gun and shoot them, then I'm going to jail (at least in Canada).

      Or worse yet if someone breaks into my house and I shoot someone else who I thought was the culprit but was innocent, then I'm defatinly in trouble.

    6. Re:Not Really Hacking Back by Wonko+the+Sane+42 · · Score: 1

      I'd have to agree that it would really depend on the strength of the retaliation if one could plausibly use an automatic system for it. If it was just a nice little script to ban the IP and bounce any packets that come from it back, then it's not really a big deal. Granted, if whoever's cracking the system ping bombs it and they faked the IP then the poor sap on the other side might get hit, but you could compensate by limiting the max packet size to something reasonable. Now, if you have a system that traces the IP, then takes every packet received from it, clones it 500 times then returns it, you've got a problem because you have a high risk of hitting a third party (or yourself). It's the difference between blocking someone when they try to hit you and pulling a gun and shooting the guy next to him. All in all, the issue seems to be what is the scale rather than should it be.

      --
      The Internet, one place where if you're not right, someone else will set you straight... maybe.
    7. Re:Not Really Hacking Back by ethereal · · Score: 2

      I think there's a difference if it's a matter of life and death, though. States have different laws on the basis of whether you can shoot to kill someone who is even robbing your house, for example. Cracking attempts like the ones in the article are really more like burglary or vandalism than attempted murder; so just attacking the attacker's machine in the same way isn't really self-defense anymore - it's just vigilante justice.

      IMHO, the correct Internet-accepted way of dealing with this would combine instantaneous but temporary IP blackholing (including systems upstream of the victim) combined with quick notification of the responsible sysadmins. I haven't heard yet of a protocol that can do this, but the Internet immune system may develop it in the next year or so if DoS attacks continue to be so prevalent. This solution would follow the tradition of internet systems as separate, sovereign fiefdoms that can choose to exchange traffic or not, but aren't really governed by any laws beyond that. The article is correct that if you wait for the FBI to deal with an attack, you will be waiting a while. Better to have agreements with your upstream providers so that you and they can react quickly and effectively to an attack.

      --

      Your right to not believe: Americans United for Separation of Church and

    8. Re:Not Really Hacking Back by vsync64 · · Score: 1
      If you have an automated defense system, I don't see as how that is "taking the law into your own hands," you are just protecting your system against intuders and ensuring they won't come back.

      The key here is the word "automated". If you personally go after an attacker, you can justify it by taking appropriate measures not to hurt innocent bystanders. Automating the system is similar to mounting a motion-tracking laser-guided machine gun on your front porch. Sure, it'll get the burglars, but what about salespeople, Girl Scouts, and friends you forgot to turn the gun off for?

      --
      TO BUY A NEW CAR WOULD MAKE YOU SEXUALLY ATTRACTIVE.
    9. Re:Not Really Hacking Back by technos · · Score: 3

      I have to admit, I have been known to retaliate. But I draw the line at actual harm; If they've portscanned me or played funny with my mailserver, I'll sent them the compliment of malformed packets likely to halt their Windows box. If I see NT on the other end, they get a nice popup 'Touch the box and die' courtesy of Windows Messaging and SMB. If they've ICQ spammed me more than once, they get a few hundred spoofed messages, randomly sent on a crontab.

      Annoying at worst, and a deterrant to 98% of the skript kiddies. The other 2% are the determined ones, and I just change IP. They'll spend all night looking for the me again, bent on revenge they can't get.

      And what if I get the wrong person/box? Whoop. A Windows box froze, or they got an odd popup message. Like that never happens in the course of normal operation...

      --
      .sig: Now legally binding!
    10. Re:Not Really Hacking Back by eventi · · Score: 1

      Automating the system is similar to mounting a motion-tracking laser-guided machine gun on your front porch. On the contrary it's like mounting a mirror on your porch... This actual purpose of the mirror is to reflect laser attacks. You could even make the case that the DOS attacker is using your system the way it was intended, and its his own fault for having the attack reflected back. If he's using an innocent bystander's computer, _he's_ the one causing that computer to come under attack, not you. Your system's doing what it was intended to do.

    11. Re:Not Really Hacking Back by vsync64 · · Score: 1
      This actual purpose of the mirror is to reflect laser attacks.

      I wasn't talking about simply bouncing attacks back; that is perfectly fair. I was talking about systems that automatically take further intentional action to disable the attacker.

      --
      TO BUY A NEW CAR WOULD MAKE YOU SEXUALLY ATTRACTIVE.
    12. Re:Not Really Hacking Back by Rastralcaz · · Score: 1

      You're saying that because the "innocent" system has vulnerabilities, they deserve anything that happens to them through those vulnerabilities? That must mean that because the 5 year old next door doesn't wear full body armor, he deserves to be shot. Even if I agreed with that philosophy, which I certainly do not, it still opens the owner of retaliatory defense systems to law suits.

      --
      Experience is that marvelous thing that enables you to recognize a mistake when you make it again.
    13. Re:Not Really Hacking Back by DrEldarion · · Score: 1

      I'd love to see the look on the face of the poor wage slave that got the message, "Touch the box and die" suddenly pop up on their comp...

      -- Dr. Eldarion --
      It's not what it is, it's something else.

    14. Re:Not Really Hacking Back by Rumble · · Score: 1

      back in the (fairly)old IRC days, there was a fairly well known exploit that could be used to send data to poor Mirc users printers. Some common ones were e-mail from God/the Devil, the "I hacked you" message, and so on. Funny stuff :)

    15. Re:Not Really Hacking Back by titus-g · · Score: 1
      most excellent!

      so if i want to trash a system all i need to do it crack a user account, ddos a few systems that i know that will take punative action, and you can wipe it out for me.

      it just gets easier

      goshen! now if only i could find a few email autoresponder accounts that actually reply to each other i could create some great loops . . .

      read witches abroad by mr tp, mirrors are dangerous

      --

      ~ppppppppö

    16. Re:Not Really Hacking Back by technos · · Score: 1

      Portscan me from a NT 4.0 box and watch yourself in the mirror ;)

      Seriously.. Take a look at the Samba docs; They tell you (pretty much) how to do it. Sniff the box's NETBIOS name and make sure to assign both the proper destination subnet and the proper destination domain when invoking smbclient..

      While I have never seen the face of a receipient, I know it has been good enough to make more than one cable modem user unscrew the coax and go dead, and make several masq'ed services on T1 lines go dead as the referenced workstation powered off..

      Only works on NT boxen with Messenger on, but anyone dumb enough to try to hack a PIX firewall on multipoint PPP is also dumb enough to leave it on. (It's in the default install)

      --
      .sig: Now legally binding!
  3. No. by fr4gg4 · · Score: 2

    Theoretically at least.

    This would trigger the same shit as the 1st man/woman who applied violence did.

    In reality..hmm one could at least make it impossible for him to continue his activities.

    --
    - --[... The secret of the hanged man, the smile on his lips... ]-- -
  4. hrm by jbarnett · · Score: 2


    If you see someone logged in from an unknown IP (amusing you screwed both tcp wrappers, OpenSSHD and your firewall up), just start ping flooding that IP. Ping first ask questions latter. Don't bother loging the user out, just ping attack the hell out of him and his network (and pray the God it isn't Bob in the next office on the same ethernet segment as you)

    --

    "`Ford, you're turning into a penguin. Stop it.'" -THHGTTG
  5. Legality of fighting back by beebware · · Score: 2
    I know that here in the UK we have the 'Computer Misuse Act' which makes hacking/cracking illegal - I suspect the same sort of thing is worldwide (practically).

    So, therefore, while somebody may be attempting to get into your systems, you can't legally break into theirs. There's nothing physically stopping you, but if you were to attack the wrong machine, or their attempt on you was an accident and you (in retaliation) bring down mission-critical systems - you'll get into a nice big legal mess (UK users can face an unlimited fine and 5 years imprisionment - bringing down a system would come under part 3 of the aforementioned Act - IANAL)

    Remember - two wrongs do not make a right...


    Richy C.
    --
    1. Re:Legality of fighting back by Legolas-Greenleaf · · Score: 3
      Hmph... i actually consulted the RCMP computer crimes division on this matter, since i was getting attempted DoS/portscan attempts on my home machine for an entire weekend. (attempted. ipchains and portsentry makes me happy).

      Anywho, apperently, in Canada, portscans and the type are not illegal. It isn't even illegal to *attempt* to break in... you haven't broken the law until you actually access the machine. The RCMP officer type I spoke with (who was quite accustomed to Linux - I was impressed) likened it to Girl Guides knocking on your door, which isn't illegal (I argued that if they started checking every door and window for days straight, it would be different, but that's another story entirely).

      My point? Oh yes... in Canada, unlike other countries, it isn't illegal to portscan or pingflood. So, i guess, that would make the automatic response legal in Canadian airspace too. Just for anyone who is interested. I guess the attitude is that it is *impossible* for the law to go after every single attempt, and that being portscanned/pingflooded/etc. is just a risk you take going on the Internet, and it is up to the end user to set up the approperiate defenses (which was, incidently, what the ISP that hosts both me and my *active* attacker told me.)

      I hope somebody gets something out of that. ;^)
      -legolas

      i've looked at love from both sides now. from win and lose, and still somehow...

    2. Re:Legality of fighting back by BigBlockMopar · · Score: 1
      The RCMP officer type I spoke with (who was quite accustomed to Linux - I was impressed) likened it to Girl Guides knocking on your door, which isn't illegal (I argued that if they started checking every door and window for days straight, it would be different, but that's another story entirely).

      You mean, sort of the way Jehovah's Witnesses do?

      --
      Fire and Meat. Yummy.
    3. Re:Legality of fighting back by kd5biv · · Score: 1
      Anywho, apperently, in Canada, portscans and the type are not illegal. It isn't even illegal to *attempt* to break in... you haven't broken the law until you actually access the machine. The RCMP officer type I spoke with (who was quite accustomed to Linux - I was impressed) likened it to Girl Guides knocking on your door, which isn't illegal..
      Knocking on your door isn't illegal, but that's the equivalent of an ordinary ping or telnet to port 23. Port scanning is more like an organized team of Girl Guides armed with lockpicks and crowbars trying every window and door in your house to see if they can open them. That, in the USA, may not exactly be illegal, but it's darned suspicious, and if the police catch them doing it, they will end up being 'questioned' for 24-48 hours.

      Ask anyone who has to deal with this .. if you're being scanned, you can reasonably expect it to be someone probing for an attack. Do they have the right to sniff around looking for soft spots until they find your unpatched IMAP port, or do you have the right to blackhole them at the firewall when you see them sending syn's to a whole bunch of unmonitored ports?

      IM(NSF)HO, there are ports which can be viewed as 'public' -- Telnet, FTP, HTTP, SMTP, and POP, etc. -- and there are others that foreign users have no business playing around with, and the ones that play around with the odd ones, especially ones associated with known security holes, are at about the 99% confidence level of being up to no good. May not be right to DoS them in return, but if the Girl Guides were out casing your house, wouldn't you be withing your rights to chase them away? Same goes for overly inquisitive crackers ..
      --


      73 de N5VB (ex-KD5BIV) AR SK
    4. Re:Legality of fighting back by Legolas-Greenleaf · · Score: 1
      You'll notice that i said in Canada. I've heard it was illegal in the states, which is why I contacted the RCMP type in the first place. By Canadian law, the only things you can be charged with is illegal access, and using your illegal access to do other things (such as access yet other systems/run a warez server/etc.)

      I was actively being portscanned for 4 days straight. I called up my/their ISP, who refered me to the authorities (the RCMP computer crimes devision). Again, the attitude in Canada is that being on the Internet is a risk, and it is up to the end user to properly firewall themselves. The police have neither the time nor the resources to chase every script kiddie portscanning when there is real crime (like, murder and stuff) to deal with.

      and, consiquentually, i don't see any legal problem DoSing them back if they're in Canadian airspace.

      But, hey. Get a Linux box for a gateway, set up ipchains/portsentry, and you're safe from most script kiddies. =^)
      -legolas

      i've looked at love from both sides now. from win and lose, and still somehow...

  6. What's the point? by Grexnix · · Score: 3

    Somebody who's running a DDOS attack - unlike the hapless electrohippies - is going to be IP spoofing and using a multitude of machines. If you bounce all the attacking packets back, all you're likely to hit is a large number of machines belonging to innocent people with bad security.

    --

    --

    --
    Wait a minute, this sounds like rock and/or roll. - Rev. Lovejoy
    1. Re:What's the point? by jshep · · Score: 1

      I would tend to think of retaliating against a DDOS attack as similar to what many feared during the Cold War. You fire your nukes at us, so we fire them at you. In no time we have bye bye world. I know that when I first started sysadmining (and had no clue about security esp. NFS on Solaris... yick!) I had a somebody hack my box and use it to hack into other boxes. I am glad nobody retaliated against my site just because some one was using it for unsavory practices. The Internet is a self-balancing decentralized community. "An eye for an eye" would only seek to destroy that community.

      --


      "Computer Science is no more about computers than astronomy is about telescopes." - E.W. Dijkstra
    2. Re:What's the point? by suffe · · Score: 1

      True, but how innocent are you if your bad sence of security / lack of knowledge / whatever letts someone use your hardware for these things? When you put up a system you have two options: 1. Make it secure - end of story. 2. Don't make it secure - live with the consequences. This might sound hard, and I for one is not some security expert but this is how it must be. Somewhere down the road ppl will learn that it is worth the time it takes to either learn this stuff yourself or hire someone who knows. It's not a quick fix but it will fix things sooner or later.

      --

      Karma: 2.71828182846 (Mostly due to small, fun pills)
    3. Re:What's the point? by Grexnix · · Score: 1
      Don't make it secure - live with the consequences.

      So, if you owned a gun shop which was robbed because you bought cheap padlocks, and your guns were used in a drive-by shooting, would you consider it fair if the shooting victim's friends drove by your shop and blew it to Kingdom Come?

      --

      --

      --
      Wait a minute, this sounds like rock and/or roll. - Rev. Lovejoy
    4. Re:What's the point? by void* · · Score: 1

      When you put up a system you have two options: 1. Make it secure - end of story. ...

      Well, you're missing the fact the option 1 is basically impossible. There's really no way to prove a system is completely secure, if it's up and connected, so hardening the machines and the network is hardly 'end of story'. The most you can do is harden the hell out of it, then keep your eye on the various lists and CERT, etc, to see if there's something new that affects you. (or actively attempt to find new holes in your own test systems). You can't 'make it secure', you can only 'make it more secure than it was'.

      --


      Code or be coded.
    5. Re:What's the point? by suffe · · Score: 1

      >You can't 'make it secure', you can only 'make it more secure than it was'.

      That is what I meant though I used a "different language". Of course you can never make anything absolutely secure. It is, to me, evident that anything digital can be manipulated, i.e. nothing is secure. Secure = as secure as can be asked of you.



      --

      Karma: 2.71828182846 (Mostly due to small, fun pills)
    6. Re:What's the point? by suffe · · Score: 1

      Much better analogy. Thank you for writing it down, saved me the time :)



      --

      Karma: 2.71828182846 (Mostly due to small, fun pills)
    7. Re:What's the point? by void* · · Score: 1

      That is what I meant though I used a "different language".

      Must have been the way I read it. No big deal. Just wanted to point out that you may have to live with the consequences no matter how hard you secure a system, because securing a system doesn't remove the potential for getting broken into or dos'd, it just lessens it, depending on how much you know and how much time you put into it. It was mostly the 'end of story' bit that bugged me. :)

      --


      Code or be coded.
  7. I am Reminded of a Proverb... by Tim+C · · Score: 5

    "Two wrongs don't make a right"

    As tempting as it may be to give them "a taste of their own medicine", the chances are that you're just going to be attacking an innocent bystander whose machine has been cracked, and is being used to launch the attack on yours.

    Even if you do hit back at the actual cracker, so what? So you trash his PC and some files; it's not like it's going to put him out of business, or cost him thousands of pounds to restore it.

    IMHO, the best thing to do is just find out as much as you can, co-operate with the authorities, and let them deal out any punishment.

    Cheers,

    Tim

    1. Re:I am Reminded of a Proverb... by G27+Radio · · Score: 2


      Hacking back may be the best way to track down the cracker. If you're lucky the cracker will turn out to be a script kiddie that wasn't smart enough to cover his identity. Then you can have the satisfaction of explaining to his/her parents that their little angel has just committed a federal crime and then discuss the best way to remedy the situation.

      numb

    2. Re:I am Reminded of a Proverb... by jayhawk88 · · Score: 2

      Point well taken, but look at it another way:

      You leave your car unlocked and running in front of a bank to go cash a check. While in the bank, a bank robber robs the bank, comes out and steals your car to make his get-away. The police, in their pursuit of said robber, shoot out the tires of your car, and otherwise trash it while bringing the robber to justice. Can you, as owner of the car, hold the police responsible for damaging your vehicle that you left unattended?

      The analogy is not perfect, I realize, but my point is this: Why should a company under attack from zombies be worried about crashing an "innocent bystanders" computer? There's a reason that zombie is there in the first place: the computer was left wide open by the owner.

    3. Re:I am Reminded of a Proverb... by Kronos. · · Score: 2

      But you mised one important point here, it's the cops that shoot out the tires of your car, NOT you. If the the cops catch him and treat the robber roughly due to resisting arrest then they have the right to use force to aprehend the robber, if you were to go after him and beat him up in the process of cathing him then you would also be in the wrong and are likely to be procecuted yourself(sounds stupid but it does happen).

    4. Re:I am Reminded of a Proverb... by bonehead · · Score: 1

      Even if you do hit back at the actual cracker, so what? So you trash his PC and some files; it's not like it's going to put him out of business, or cost him thousands of pounds to restore it.

      You may be right about not putting him totally out of business, but the one time I did this I will say that he never came back to MY network again.

      (and yes, i made absolutely sure it was his machine I was logged into.) then again, this wasn't a DDOS attack, he was actually logged into my machine, making the verification much easier.

    5. Re:I am Reminded of a Proverb... by wafath · · Score: 1

      I agree. It is the responsibility of individuals to secure their own machines, and don't contribute to the problem. If your machine is being used in a crime, and actively attacking someone, a counter attack is a valid response.

      The problem, I think, is more in IP faking. If you blast a computer that isn't involved, you are, and should be, up shit creek.

      W

    6. Re:I am Reminded of a Proverb... by cybermage · · Score: 1

      But you mised one important point here, it's the cops that shoot out the tires of your car, NOT you.

      More correctly, it is not the bank shooting out the tires.

      Given this scenario, the robber has committed two crimes: bank robbery and auto theft. It matters not how accessible the car was, it was still stolen.

      Getting back to the point, if a hacker compromises a bystanders box to hack at another, they are committing two crimes. Having the second victim trash the compromised box to stop the hack may not be a third crime. The hacker should be at fault for whatever happens to the box he's 'stolen' in committing his crime.

      --

    7. Re:I am Reminded of a Proverb... by jayhawk88 · · Score: 1

      I guess this kind of get's into the whole "Common Sense vs. Law" debate.

      If I spill hot coffee on myself at McDonalds and burn my lap, common sense tells me that I should slap my head and go to the doctor. The Law, however, tells me that I can sue McDonalds for not telling me that coffee might be hot.

      Likewise, if I leave my computer logged onto RoadRunner night and day, and Joe Scriptkiddie hacks it and DOS's CNN, common sense tells me that when RoadRunner cancels my account because CNN has flooded my box with packets, I should slap my head and read up on security while looking for another ISP. The Law, however, says that I can probably blame CNN for violating my civil rights, and blame RoadRunner for not making me aware that such dangers exist.

    8. Re:I am Reminded of a Proverb... by doctorfaustus · · Score: 2

      Exactly what law of the United States prevents one site from sending loads of traffic to another site? And if such a law exists, why isn't Slashdot being prosecuted under it? And what if the owner of a server experiencing the Slashdot Effect redirected all that traffic back to /.? Would that be a crime? Please cite the specific Act of Congress, if you can.

    9. Re:I am Reminded of a Proverb... by Danse · · Score: 2

      It matters not how accessible the car was, it was still stolen.

      Actually, if you live in Texas, leaving the car unattended with the keys in the ignition will get you slapped with a rather pricy ticket.

      --
      It's not enough to bash in heads, you've got to bash in minds. - Captain Hammer
    10. Re:I am Reminded of a Proverb... by trog · · Score: 1

      Sounds like you're just as clueless to how the Internet really works.

      1. Even if the cracker is really coming from the ip address in your logs, he doesn't "own" it at all. The real victim in a crack-back would be his isp and all the intermittant hops in between you and him.

      2. In the United States, there is no "self-defense" clause in any of the laws governing cracking. This means, regardless of the circumstances, it is a federal offence to retaliate. I don't know of the laws in other countries.

      3. I've done some security assessment/expert witness testimony regarding cracks on business systems. I was involved in one case where it was thrown out of court because the sysadmin retaliated.

      4. 99.9999999% of the crackers out there are script kiddies. All you have to do to keep them out is stay on top of the security policy of your site. A multi-layered approach to network security will keep your network protected.

      5. Because of #4, if you are cracked, even though it doesn't excuse it, it usually IS your own damn fault. (I would never tell this to a client, though). Spend the time during the crack gathering as much data as you can regarding your cracker, and spend the time afterwords upgrading the site security.

    11. Re:I am Reminded of a Proverb... by bonehead · · Score: 1

      The real victim in a crack-back would be his isp and all the intermittant hops in between you and him.

      Please explain this. I don't see how his ISP would be affected. (hint: my retaliation was not one that generated any significant amount of traffic.)

      In the United States, there is no "self-defense" clause in any of the laws governing cracking. This means, regardless of the circumstances, it is a federal offence to retaliate. I don't know of the laws in other countries.

      True. I didn't claim it was legal. I merely fessed up to the fact that I had done this once, and that it did have the desired effect.

      I've done some security assessment/expert witness testimony regarding cracks on business systems. I was involved in one case where it was thrown out of court because the sysadmin retaliated.

      Well, he was only attacking my home system, so I really can't see where I would have taken the time or expense to prosecute anyway. (not that that justifies anything)

      Because of #4, if you are cracked, even though it doesn't excuse it, it usually IS your own damn fault.

      Yes, it certainly was my own damn fault. And, yes, I did upgrade my security afterwards. And, no, I probably would not take this approach again. I was merely relaying an account of a single incident in which a strike-back strategy had the desired effect.

    12. Re:I am Reminded of a Proverb... by Bob+Dobbs · · Score: 1

      The problem that I've run into is that you do the right thing by contacting the owner the of the ip address and get a rather clueless response like "That's not ours" (when you've already checked that they DO own the address) or (my favorite) "That couldn't have come from us, no one is in the office during those times....".

      I don't think doing something really malicious would be cool, but something that's simply annoying to a clued admin, but would alert them to the fact they've got a real problem yet limit the damage from the unclued. The ideas I've had have been (assuming it's a Linux box) put a call to halt in the crontab or put on ipchains rules that keep things under control.

    13. Re:I am Reminded of a Proverb... by dillon_rinker · · Score: 2

      Yeah, but if somebody tries to steal my car I can use lethal force to stop them.

    14. Re:I am Reminded of a Proverb... by nanun · · Score: 1

      I guess it all depends on your basic philosophy. If you're a "turn-the-other-cheek" kinda guy, you're absolutely right. There are those, however, with an attitude more like, "Don't start a fight, and don't walk away from one."

      In the case mentioned, I saw it more like self-defense, than an outright attack.


      ----------
      --

      You mean you'll put down your rock, and I'll put down my sword and we'll try and kill each other like civilized peo
    15. Re:I am Reminded of a Proverb... by Darchmare · · Score: 2

      I think it's a matter of intent.

      Do you intend to bring the server down? Then that's computer resource abuse. Are you pointing to a web site? That's an intended use, and if it goes down it's not your fault. Big difference.



      - Jeff A. Campbell
      - VelociNews (http://www.velocinews.com)

      --

      - Jeff
    16. Re:I am Reminded of a Proverb... by cactopus · · Score: 1

      So I say just hack into the remote machine and upgrade every bit of security on it you can. If it is a bystander... they'll be happy because now the original hacker can't attack anymore. If one installs packet sniffing they could follow the "carbon chain" so to speak to get to the next machine until they found no more suspicious activity. If you are actually on the hacker's machine you would then be able to tell with reasonable certainty. Send a message that says You will now be leaving my machine... your ip has been logged.. have a nice day... > /usr/sbin/shutdown -h now... unless it's windows... but one can get the point. Andrew

    17. Re:I am Reminded of a Proverb... by doctorfaustus · · Score: 1

      Jeff--I note you haven't cited the law. "Computer Abuse"? What the hell's that?

    18. Re:I am Reminded of a Proverb... by trog · · Score: 1

      >>The real victim in a crack-back would be his isp and all the intermittant hops in between you and him.

      This was directed mostly at a retalitory DoS attack. The flood of traffic has to be passed router to router to his box; this can certainly affect his isp. Imagine what happens if he's located on a cable modem? Everyone on his neighborhood segment is affected.

      >>I've done some security assessment/expert witness testimony regarding cracks on business systems. I was involved in one case where it was thrown out of court because the sysadmin retaliated.

      >Well, he was only attacking my home system, so I really can't see where I would have taken the time or expense to prosecute anyway. (not that that justifies anything)

      Let's say that he spoofs an ip address that belongs to a large company. Or, that he works for that company, and is using their equipment to crack your machine. If the company is smart, they will most definately bring charges against you for your retaliation strike. Although I've not been involved in any cases like this, I have seen it happen.

    19. Re:I am Reminded of a Proverb... by Darchmare · · Score: 2

      ---
      I note you haven't cited the law.
      ---

      I'm not a lawyer, and am too lazy to look around. It's not like it hasn't been prosecuted before.

      ---
      "Computer Abuse"? What the hell's that?
      ---

      Computer resource abuse. If I recall, that's justification they used in Operation Sundevil to prosecute the offenders (those that weren't innocent bystanders at least).

      My point still stands: Intent is a major part of the law. Run over someone on accident, and run over another person on purpose. The former may require you to pay someone's doctor bills, the latter will land you in jail.



      - Jeff A. Campbell
      - VelociNews (http://www.velocinews.com)

      --

      - Jeff
    20. Re:I am Reminded of a Proverb... by doctorfaustus · · Score: 1

      The "illegal acts" you're citing are torts, where you must right the "harm" you've caused by paying civil damages--this is derived from English common law. These are quite different from "illegal" acts, which are created by criminal statute. I'll agree a cracker who ruins a system must pay damages to right his wrong, and that intent will cause the level of his culpability to rise from pure negligence to the point where, for example, punitive damages may be imposed. But the act of sending a large amount of traffic to a site, while it may be a tort, is not an "illegal" act, as far as I know. As for your being too lazy to find the law, gee, why should anyone take your comments about it seriously? In fact, you admit you do not know what it is. And the same goes for all the rest of the posters who assume they know that a DOS "attack" is illegal, yet can't answer my initial question--that's sloppy thinking, my friend.

    21. Re:I am Reminded of a Proverb... by Darchmare · · Score: 2

      ---
      As for your being too lazy to find the law, gee, why should anyone take your comments about it seriously?
      ---

      Will you reread my comments? All I said was that intent could very well have something to do with it.

      ---
      In fact, you admit you do not know what it is.
      ---

      Perhaps you'd prefer talking like you know something and yet not admitting that you're not a lawyer?

      ---
      These are quite different from "illegal" acts, which are created by criminal statute.
      ---

      Let's put it this way: there have been people arrested for intentionally fucking with people's systems. Is that 'illegal'? I don't know - but I do know that they were arrested.

      It's occuring to me that your original post was nothing more than bait.

      - Jeff A. Campbell
      - VelociNews (http://www.velocinews.com)

      --

      - Jeff
    22. Re:I am Reminded of a Proverb... by Darchmare · · Score: 2

      Oh, and before you respond again... I'll quote my original reply:

      "I think it's a matter of intent."

      Emphasis mine.


      - Jeff A. Campbell
      - VelociNews (http://www.velocinews.com)

      --

      - Jeff
  8. not a good idea by wrenling · · Score: 3

    Attacking back is just going to give the government and industries a reason to try and pass more controlling legislation. Its too close to them being able to create a "Wild West" analogy, where they would have to protect the "innocent women and children."

    There have long been accepted channels for handling these situations, such as contacting the sysadmins for the ISPs, *cough* the FBI & local police (Okay, I know, they are often clueless, but they arent going to get MORE clueful if we keep going AROUND them!), etc.

    --
    Check out Magic Firesheep!
    1. Re:not a good idea by Michael+Spencer+Jr. · · Score: 3

      The FBI isn't always clueless.

      I just finished working with two FBI case agents out of Omaha Nebraska (*cough* SiliCorn Valley) regarding tracking down a UDP packet-storm DCA and a simple web site defacement of our 'honey-pot' machine.

      Generally, the FBI is clueless only when you throw your hands up in the air and say "I've been hacked!" and expect them to do all the work. If you can do the major investigation yourself (looking up ISP's with 'dig -x ###.###.###.### soa' and 'whois ###.###.###.###@whois.arin.net' and of course 'whois domainname.com' and 'nslookup ###.###.###.###') and draw them a picture, they follow along and understand very well.

      It was fun watching a tense meeting with two 'G-men' melt into laughing and joking. They seemed to understand the 'hacker scene' pretty well: the arms-race, the script-kiddies, and the major web sites you get exploits from. And they were visibly excited when they saw that I had done their footwork for them.

      Even if the local FBI agents are somewhat clueless (which these weren't) they have someplace full of very clueful people who can analyze your logs for you. If you come across as knowledgable, they'll recommend you to the analysis people, and they'll work with you.

      (And remember: When you're getting DCA'ed, 'tcpdump -n -i eth# | gzip > capture.log.gz' is very very useful evidence. When you get your upstream ISP to filter out the flood traffic, sometimes the originator of the attack will ping you to see how your connection is doing. Those little innocent probes in between major shifts in attack activity make for great evidence.)

  9. Exactly what I want to do by Jimhotep · · Score: 1

    When I get my "always on" internet at home,
    I want to watch for crackers and try to
    link back to them. Seems like it would
    be fun and educational.

    Surely a program could watch for "attacks" and
    just let them in. Try to hold thier attention
    long enough to trace back to them.

    Or am I just crazy?

  10. Hack back? No. by Sunlighter · · Score: 1

    I'd say that hacking back was justice if you could be sure that the system you were hacking back was the hacker's. But you can't. It would be really terrible if (a) somebody started attacking your web site, (b) you found and attacked the source of the attacks, to make that machine cease operations, (c) it turned out that the machine you just blasted belonged to your good friends at Thyme magazine, and had itself been hacked... oops.

    Gotta watch out for that friendly fire.

    --
    Sunlit World Scheme. Weird and different.
    1. Re:Hack back? No. by bonehead · · Score: 1

      Yes, with some attacks, and in some situations, you CAN be sure that you are attacking the cracker's system. There are plenty of script kiddies out there who aren't quite bright enough to cover their tracks very well.

      Obviously, you should never strike back if there is any room for doubt.

    2. Re:Hack back? No. by Sunlighter · · Score: 1

      Yes, but an exceptionally skilled cracker might be able to make it look like you are attacking a script-kiddie cracker's system, when you're really attacking one of his decoys. Feints within feints...

      (Sorry about my hacker / cracker mixup previously.)

      --
      Sunlit World Scheme. Weird and different.
    3. Re:Hack back? No. by bonehead · · Score: 1

      but an exceptionally skilled cracker might be able to make it look like you are attacking a script-kiddie cracker's system

      True. In the situation I was talking about, though, I actually logged into his system and opened a talk session with the user on the console. (stupid kid actually used the same password for root on his system as he used on the user id that he installed on my box.) If that was actually an automated script that I was talking to, then my hat's off to the author.

      Anyway, my retaliation did not involve destroying data, flooding connections, or anything overly malicious. I simply made sure the kid was appropriately nervous, and left a nice little message in the motd for him to have to explain to his dad (who actually owned the computer).

      Anyway, that's been awhile ago, when I was much younger and cockier. I'd probably take a different approach these days.

  11. Fighting back by BgJonson79 · · Score: 1

    I would think that fighting back harshly (ie, not just "returning mail" like the article implies) would make the victim now no better than the attacker. It is pretty obvious the the e-hippies weren't so bright in using one IP (and their home one at that), and that most real crackers would use boat-loads of other systems. The victim in this case was fortunate to be able to trace it back to just one IP. Of course, hopefully DoS attacks will occur less now that security IT professionals know what to look for.

    --

    There are four boxes used in defense of liberty: soap, ballot, jury, ammo. Use in that order.

  12. Tech Journal by Dungeon+Dweller · · Score: 1

    That was actually first written in a tech journal that my office recieves, and then CNN stole it. I forget which one.

    --
    Eh...
  13. Why not by magicsloth · · Score: 1

    If the webhost believes that they know where the assualt comes from, it can't hurt to try to fight back.

    If they correctly identify the attackers and give them a dose of their own medicine, the attack will quickly stop.

    If however the attacker is using computers that have been previously taken over, whats the damage? Those computers (more than likely only desktop's in some business or school) cant access the net for a small amount of time. No big deal. No one loses money and some college kid just can't check his email on that machine for a little bit. Big deal.

    It looks to me like there is something to gain (the end of these attacks and such) and not very much to lose by striking back. It would be different if we were talkign about shooting at someone and hoping they were the real attacker, but we are talking about internet access.

    On the other hand, businesses and the gov are really good at putting figures on damage that come out of nowhere. "Our connection was dos'd for a day and it cost us $10 billion."

    -magicsloth

    1. Re:Why not by Jon+Peterson · · Score: 2
      If the webhost believes that they know where the assualt comes from, it can't hurt to try to fight back.


      Sure it can. First, off, what if the webhost believes wrongly, and they target an innocent machine.



      If they correctly identify the attackers and give them a dose of their own medicine, the attack will quickly stop.

      Maybe, but maybe not. Many hackers would simply take the challenge and escalate their attacks back. Any hacker doing anything remotely serious in this regard will be using a staging machine of an innocent third party. Wiping that machine won't help anyone - it will just make the hacker compromise another innocent third party machine to stage a revenge from.



      If however the attacker is using computers that have been previously taken over, whats the damage? Those computers (more than likely only desktop's in some business or school) cant access the net for a small amount of time. No big deal. No one loses money and some college kid just can't check his email on that machine for a little bit. Big deal.


      Oh come on, get serious. So some poor school teacher comes in to find that his classroom server has been thoroughly trashed, and he's got to spend his lunch time doing restores and explaining to the kids how yesterdays work got lost. Lovely. If, instead of being a gung-ho bastard the original victim had simply emailed the admin of the compromised machine and said 'BTW your box is being used to stage hack attacks on me' the teacher would have been able to do a backup and plan a sensible re-install of the box in an orderly fashion. - Plus may have been more willing to help find the real hacker.
      It looks to me like there is something to gain (the end of these attacks and such) and not very much to lose by striking back. It would be different if we were talkign about shooting at someone and hoping they were the real attacker, but we are talking about internet access.


      Retaliating against hackers is simply stooping to their level, and innocent people are almost certain to get hurt in the process.

      --
      ----- .sig: file not found
  14. Is this sort of like... by AntiPasto · · Score: 1
    Kevin Mitnick being forced off the speakers' circut? Is that defense? I dunno... perhaps I'm paralleling free speech / cracking a bit too much, but I dunno... how the hell do you do anything in a neighborhood where there's a billion rooms in each house, and everyone has to make their own keys?

    I should write a book... "20 things to look for in your next basement-extract hunchback computer geek 13-year-old security expert..." Lesson #1: DDOS

  15. Spoofing and attacking third parties by gwolf · · Score: 2

    Spoofing is not a hard task to accomplish. If I was to attack a machine I knew was well hardened, I might have decided to attack an aggressive, less-protected sysadmin pretending to come from that machine. If I tricked him into attacking back, I would effectively trick him into helping me.

    A good sysadmin must learn from the experience, harden his computer, report it to an Incident Response Team, and... Well, be prepared for the next time.

  16. I wouldn't. by Booker · · Score: 5
    There's generally no good reason to hack back, I think. (Unless identifying and reporting the hacker constitutes hacking back...)

    I use PortSentry as one line of defense, and if someone scans the box, they just get dropped into a black hole. (Actually, them and their subnet, in case it's a dynamic IP on a dialup.)

    PortSentry allows you to run any arbitrary command when a scan is detected, but he warns against retaliatory action:

    I NEVER RECOMMEND PUTTING IN RETALIATORY ACTION AGAINST AN ATTACKING HOST. Virtually every time you're are port scanned the host doing the scanning has been compromised itself. Therefore, if you retaliate you are probably attacking an innocent(?) party. Also the goal of security is to make the person GO AWAY. You don't want to irritate them into making a personal vendetta against you. Remember, even a 13 year old can run a [insert favorite D.O.S. program here] attack against you from their Windows box to make your life miserable.

    Sounds reasonable to me...

    ---
    1. Re:I wouldn't. by vsync64 · · Score: 1

      Except you're then vulnerable to a new DoS attack. If they switch spoofed IPs rapidly, they can fill up your routing table. Whoops!

      --
      TO BUY A NEW CAR WOULD MAKE YOU SEXUALLY ATTRACTIVE.
    2. Re:I wouldn't. by Frank+T.+Lofaro+Jr. · · Score: 1

      So if I'm a darkside hacker and I want to prevent you from talking to Yahoo, I could just spoof Yahoo's IP and send port scan packets. I don't get to see the replies, but that's not the point, I get you to cut yourself off from Yahoo. Or any other sites. I could have you cut yourself off from anybody I know or suspect you want to communicate with.

      --
      Just because it CAN be done, doesn't mean it should!
    3. Re:I wouldn't. by Booker · · Score: 1

      Well, I realize that's a risk, but I'm just protecting my personal box. It's not like I'll inconvenience my users (I don't have any). I figure that my box will look unintersting enough that they'll go away. Whenever an IP is dropped, I get an email, so I'm aware of what's going on, and I can fix it if I need to.

      Do you have any suggestions for a better way?

      ---

    4. Re:I wouldn't. by Mike1024 · · Score: 1

      Hey,

      Do you have any suggestions for a better way?

      On my Windows box, I didn't want to run any services on certain ports. For my own entertainment, I wrote a program to open the ports to recieve data and wrote a program to accept connections, offer a login with an easily guessable password (It was 'Password') and then offers up what appears to be a *nix root prompt, but whatever input it got, it said 'Command unrecognised'. It had a nice GUI so I could watch all the script kiddies log in, thinking they were amazing root hackers, and then find themselves unable to execute any commands. I don't know enough about Unix/Linux to write anything for said platforms (I'm only starting to learn now) but a good protection against hackers would be a login prompt where any user/pass combination gave the appearence of a login but if the user/pass were wrong, it was a 'synthezised' prompt where the commands don't actually *do* anything.

      Just my $0.02

      Michael Tandy

      --
      "Goodness me, how unlike the FBI to abuse the trust of the American public." -- The Onion
    5. Re:I wouldn't. by Mneme · · Score: 2
      Well, I realize that's a risk, but I'm just protecting my personal box [with PortSentry]. It's not like I'll inconvenience my users (I don't have any). I figure that my box will look unintersting enough that they'll go away. Whenever an IP is dropped, I get an email, so I'm aware of what's going on, and I can fix it if I need to.

      Do you have any suggestions for a better way?

      I prefer snort. It logs attack attempts, but doesn't do the blocking that PortSentry does. Snort is very configurable, and can log a good deal of information.

      The question I have (which I've been thinking of submitting to Ask Slashdot) is what to do with the lists of attacker IP addresses. I'm sure these are mostly just ``innocent'' compromised hosts, but it would be nice if there were some organized way for us to keep track of who those hosts were, so that people who were concerned about security could blacklist them.

      Of course, there would need to be a way to ensure that the reported IP addresses are genuinely attackers (otherwise script kiddies could just submit claims that you were hacking them). Maybe Advogato's method for establishing a trust network could be adapted to the problem?

  17. It happens already.. by marcushnk · · Score: 1

    I live in an "outback" town In Western Australia. And I've been VERY heavily involved with the ISP's in this town for the past three years.. This stuff used to happen all the time, One service would DOS the other service, then the victim (a freind of mine at the time) Fought back by trshing his solaris annex server, onece a week. It was fun at the time.. but after a while.. money and buissnes got in the way.. you can't maintain a REVENGE IS SCHWEET type outlook if you want to stay in business. It just get too damned expensive.

    --
    "Consider how lucky you are that life has been good to you so far. Alternatively, if life hasn't been good to you so far
  18. I would have to say no by michaelsimms · · Score: 1

    Cracking in retaliation is just a vigilante excercise and shouldnt be encouraged. For one thing, the target may be a machine that has in itself been cracked (and is thus just as much of a victim) or it may be one user at a site that is otherwise harmless. Take down their machine and you remove the resource fro the people using it legitimately. There are laws out there for this kind of thing. If you are SO sure you know who it is, beyond doubt, then take your proof to the police and let them deal with it. Apply the same laws online as you do offline.

    --

    Tux Games. Your complete source for native Linux games.
  19. I hate to say it... by paRcat · · Score: 2

    but I submitted this back in April. It's looks like CNN just rehashed the April 17th article about the same thing.

    That point aside though, I think the view of no couter-attacks just stinks. While I don't like the bandwidth that it takes up, how else are we supposed to defend ourselves? What ConXion did was pretty cool.

    Hey, just had a thought, the Internet is where WW III will be held! Just imagine, country after country attacking each other through DDoS. 'A' defends by sending all those packets at 'B's ally 'C'. Pretty groovy war games if you ask me. :)

  20. Fight or Flight by tkrabec · · Score: 1

    If you are hit you either run or fight (self defense)

    I say we develop a protocol for fighting back (self defense and self policing). Part of this protocol should include the education of people to harden their systems. If you system is compromised and used in an attack, because your sysadm did not lock it down then you should not complain when you get "hit back".

    If the systems are locked down then at least the wanna be's won't be trashing systems. I know we cannot stop all the crackers but at least let's make it harder for the idiots.

    -- Tim

    --
    TKrabec Pahh
  21. An eye for an eye, and a tooth for a tooth... by Guppy · · Score: 1

    ...will leave us all blind and toothless.

    Most folks here are probably familiar with the "Prisoner's Dilemma" puzzle, and how the simple tit-for-tat strategy is one of the most successful. However, there is a variant of the puzzle that assumes that communication is "imperfect", and that there is some probability that a Prisoner's response will be misread. In that situation, tit-for-tat games degenerate into an endless cycle of retaliation. Of course, I don't see it happening today, but imagine if retaliation is ever automated (Black ICE?).

  22. You gotta be kidding me by Ionized · · Score: 1

    first of all, simply bouncing back any recieved packets can in no way be interpreted as an "attack." it is no different than marking your junk mail as "return to sender;" if someone spams you with so much junk mail that when you send it back they become clogged with it, it is their own damn fault.

    second of all, i don't want to hear about how this has the potential to hurt innocent bystanders. i'm sorry, but if your system is so insecure as to allow a hacker to use it as a staging point, then you deserve what you get. perhaps if everyone fought back against DoS's and such, and enough "innocent bystanders" were injured, they would take the time to secure their system the way they should have in the first place.

    the only problem is in the case of spoofed IP addresses. in this situation, the person being hurt will have had nothing to do with the problem, and the one at fault (the attacker's ISP) will not be harmed in any way. the only possible fix for this is if enough people bitch and complain, the ISP in question might get its act in gear simply due to user/peer feedback.

    Power Corrupts

    1. Re:You gotta be kidding me by vsync64 · · Score: 1
      second of all, i don't want to hear about how this has the potential to hurt innocent bystanders. i'm sorry, but if your system is so insecure as to allow a hacker to use it as a staging point, then you deserve what you get. perhaps if everyone fought back against DoS's and such, and enough "innocent bystanders" were injured, they would take the time to secure their system the way they should have in the first place.

      Very true. But what about, say, a multiuser system? Sadly, there aren't many of these around anymore, but...

      Say you're user ionized on your shell account. You're working on something useful for the community. But unknown to you, user l33thax0r is busy attacking some other site. It's not your fault, because you don't administer the system, and l33thax0r is just using the same system capabilities available to you. Strangely, this type of friendly fire seems less excusable to me than the type you mentioned.

      I definitely agree that if you're being attacked, your primary responsibility is to protect your system. And if some idiot forgets to lock down the appropriate things and gets turned into a zombie system, well, sucks to be him. But I still feel sorry for the l^Husers stuck on this guy's system...

      --
      TO BUY A NEW CAR WOULD MAKE YOU SEXUALLY ATTRACTIVE.
    2. Re:You gotta be kidding me by javatips · · Score: 1

      I agree with you.

      I have another point to make.

      If you bouce back the packet to the "innocent bystander", you will slow it down (thus reducing the flow to your own computer) and hopefully, this will get noticed by the sysadmin (if there is one). This will notify the sysadmin that is system has been compromised and, hopefully, he will shutdown the offending programs and kick the hacker (if he is still there).

      I think boucing packet is perfectly ethical. hacking back and compromising the attacking system would be unethical (and illegal).

    3. Re:You gotta be kidding me by rico2000 · · Score: 1

      And for all those who think that innocent bystanders might be getting hurt by people doing spoofing - Any RESPONSIBLE ISP should not be forwarding spoofed packets. This is so easy to prevent, and would stop spoofing in it's tracks.

      Just my 2 cents...

      --
      Lord, please save me from your followers...
    4. Re:You gotta be kidding me by Ionized · · Score: 1

      i dont think you understand how things work.

      i'm l33t_haxor_d00d. i use ISP#1.
      you're innocent_bystander. you use ISP#2.

      ISP#1 forwards spoofed packets. ISP#2 does not.

      i attack corporate_server. i spoof the packets to say they are coming from you.

      corporate_server bounces everything back and it all hits you.

      theres nothing you or your ISP can do to prevent this other than simply blocking traffic from corporate_server. my ISP's irresponsibility has caused you problems, and yet there are no consquences for me or my ISP.

      Power Corrupts

    5. Re:You gotta be kidding me by rico2000 · · Score: 1

      That is EXACTLY what I am saying. If ISP #1 sets their routing/switching equipment up to NOT forward spoofed packets, then the spoofed type of attack would not be possible, other than spoofing IP's on ISP #1's network. If things are setup better, you would not be able to send spoofed packets that aren't on your subnet. A little planning on the ISP end can prevent most of these things.

      --
      Lord, please save me from your followers...
  23. Please don't . . . by mszeto · · Score: 1

    If someone comes into your home and trashes the place, is it okay to go to his/her home to trash the place? If they steal your car, is it acceptable to steal their car? Of course not! that's what we have laws for. This is how turf/gang wars start and continue - people take the law into their own hands. Someone hacks your site, you hack theirs, they hack yours, you hack theirs. When does it stop? Don't let the internet become a big turf war - we're better than that.

  24. Another Age-Old Debate. by Alarmist · · Score: 3
    Really, this is not much different from the arguments regarding the use of force in defending one's home against a burglar. True, the stakes are different (lives versus property), but the story is the same, as are the concerns:

    • There is the danger of injuring innocent bystanders (shooting through the wall and hitting someone else/destroying a hapless innocent's machine).
    • The use of force may deter the individual offender, but won't necessarily stop potential offenders.

    The difference here is that in cracking attempts, one can easily find oneself enmired in a situation where attempts escalate as the cracker and defender each try to outdo the other. This isn't the case with breaking and entering, as it usually only happens once, and if someone is killed, they cannot continue the escalation.

    What recourse do system administrators have? They can build the best defenses possible, but any system built to connect to another can be compromised. The law may or may not be on their side should they decide to retaliate, but law enforecment is notoriously slow to respond in cases of electronic intrusion.

    Perhaps the only viable alternative at this time is to strike back. Who can say?

    1. Re:Another Age-Old Debate. by Reality+Master+101 · · Score: 1

      Really, this is not much different from the arguments regarding the use of force in defending one's home against a burglar.

      Well, it's not quite the same. If a burglar breaks into my house, there is no question he's guilty and I would have no guilt about shooting him. For an electronic break-in, you can't necessarily identify the guilty part all that easily.


      --

      --
      Sometimes it's best to just let stupid people be stupid.
    2. Re:Another Age-Old Debate. by deacent · · Score: 1

      I would never condone an active attack, retaliatory or otherwise, but I don't see anything wrong with putting a punishing deterant into place. Bouncing packets back to their source when you are positive that you're under a DDOS is fine if you are absolutely positive that they are going to the originator.

      There is the danger of injuring innocent bystanders (shooting through the wall and hitting someone else/destroying a hapless innocent's machine).

      I don't have a problem with it if the packets are being laundered through an "innocent bystander", since they are inadvertantly an accessory. Presumably, the bounced traffic will get their attention and they could shut down the attack. It's when the packet's originating address is forged that you get into trouble. If that address is pointing to someone completely out of the loop, bouncing packets back to them will only create a second DDOS on someone who was otherwise unaffected.

      The use of force may deter the individual offender, but won't necessarily stop potential offenders.

      The goal is to stop as many potential offenders as possible. This must be balanced against the price of the deterent (active cost, side effects). A passive resistance (filtering packets, etc.) is far preferable to an attack, but as long as you're absolutely positive that you're hitting the right guy, turning an attack back on itself is more efficient.

      -Jennifer

    3. Re:Another Age-Old Debate. by climer · · Score: 1

      I have to agree with Reality Master 101. The comparison between a physical burglary and a net DOS or other attack is not in any way valid.

      It (net attack) is more akin to launching an attack from a submarine that may be in a neutral third party countries waters. Resulting in a return strike on the third party country. (this example assumes that detection of the sub seperately is impossible).

      Attacking me in the home personally is quite different.
      /Duncan
      Duncan Watson -Rock climbing, Encryption, privacy
      PGP Fingerprint -PGP Key on www.keyserver.net

      --

      Duncan Watson
    4. Re:Another Age-Old Debate. by Mike1024 · · Score: 1

      Hey

      Really, this is not much different from the arguments regarding the use of force in defending one's home against a burglar.

      Difference: Somebody who you've shot dead isn't going to reinstall his body and come back with his mates to burn your house down.

      Crashing a Win95-using script kiddie who's using Bob's generic port scanner and Win95-bundled telnet is okay if you don't do too much damage, like an electric fence. Launching a personal one-on-one reformat-your-hard-disk war, however, is silly, like giving a burgler a savage but no-permanant-damage punishment beating.

      Just my $0.02

      Michael Tandy

      --
      "Goodness me, how unlike the FBI to abuse the trust of the American public." -- The Onion
  25. Some informed opinion on the subject... by mav[LAG] · · Score: 5
    can be found at Attrition's page on the subject. In a nutshell, it's much harder than it looks, legally questionable and more often than not ends up screwing around with innocent third parties.

    --
    --- Hot Shot City is particularly good.
  26. Eliminates Any Possibility of Claiming Damages by LaNMaN2000 · · Score: 1

    If the site that is getting hacked wants to have any opportunity to sue the attacker for damages or attempt to use the extent of the financial loss suffered to prosecute, then it should not retaliate. If a commercial site retaliates, it opens itself up to a counterclaim from the hackers themselves. It is as if a burgler runs down your electric fence. In many jurisdictions, the burgler has as much right to sue for the injuries he suffered as you do to reclaim the cost of the fence (note: there are exceptions). Even though the fence is merely applying a shock to the burgler in a direct response to his putting pressure against the fence, you are still responsible for his injuries.

    For a governmental or non-profit organization that cannot claim damages against the hackers, this is a creative way to get even.

    --

    ByteMyCode.com: A Web 2.0 code sharing community.
  27. NWFusion has a feature on this this week... by bemis · · Score: 3

    NetworkWorld Fusion (idg.net subsidiary) has a pretty good feature on this this week, and from what i gathered from it most netadmins/sysengineers *wanted* to go back after people in the process of penetrating their systems, but the overwhelming majority *wouldn't* ... they opted for setting up 'honeypots' and the like to lure the criminals in and monitor them (presumably) long enough to confirm identity/ensure enuf info is gathered for conviction... check it out ... good article.

  28. Am I missing something here? by HBergeron · · Score: 1

    Obviously, when you know the attacker, there is nothing wrong, morally or legally, about bouncing traffic back to the source.

    But what about DDOS with hijacked servers? The choice is between allowing your own server to be disrupted or disrupting the group of servers who, however unwittingly, participated in the attack. An added bonus, knocking out those servers will stop the attack, as the crackers will lose their launch points.

    I am clearly not an expert on the technical side of this issue. I trust the majority of comments I have seen regarding DDOS which state that allowing yourself to become a platform for such attacks is the result of bad server set-up or security. If hosting DDOS attacks doesn't substanially affect a company, they will not invest in improving their systems (unless you want to propose new legislation making them liable - never the best solution). However, if a company is faced with losing their server, they will have the necessary economic incentive to invest in better security and IT personnel. A nice, market based solution that doesn't require gov't intervention. In fact, the gov't should make certain that it doesn't prohibit this course of action by sysadmins.

    Now, I'm not endorsing active efforts to disrupt an attacking server (two wrongs don't make a right), but I can't see any problem with bouncing DOS traffic from whence it came - Am I missing something here?

    Take responsibility for your own packets.

    --
    THE YEAR WAS 2081, and everybody was finally equal...
  29. My box was compromised once... by vsync64 · · Score: 1
    ...by some weirdo in England, going through somewhere in Virginia (Langley, according to other information I managed to dig up!!!). They did a good job. My Debian box showed nothing with finger, who, or anything similar, and I only noticed it because my net load meter was full up, and I wasn't doing anything.

    A random netstat showed a ton of packets going to a domain named after the Soviet Union's tourist agency, and as soon as I went to the page for Ethereal so I could scan the packets, it stopped.

    That was too weird for me, so I notified the FBI. Two months later, a computer crimes guy got back to me and asked if Linux was anything like RedHat... =)

    --
    TO BUY A NEW CAR WOULD MAKE YOU SEXUALLY ATTRACTIVE.
  30. Politics of Assassination is the answer by rlglende · · Score: 1


    Seems a perfect use for this wonderful mechanism.

    Lew

    --
    "The Constitution, the WHOLE Constitution, and nothing but the CONSTITUTION."
  31. Doing the attacker's dirty work by Phaid · · Score: 3

    The problem with even having this discussion is that it assumes that the victim of the initial attack, and the attacker, are operating in a vacuum -- or at least that they both have direct connections to internet backbones. Most times this is not the case; both parties have upstream ISPs that carry their outbound and inbound traffic to the rest of the world. In the unlikely event that the victim can locate the true source of the attack, and not just an owned machine, retaliating against the attacker will constitute an even greater load on the victim's ISP and probably create a DOS condition at the attacker's ISP.

    Let's do the math: we retaliate, and twice as many people (or more) are subjected to a DOS. Hmm, doesn't sound like a good strategy.

  32. Whee...fun with doubleclick by Mark+F.+Komarinski · · Score: 2

    I have ads.doubleclick.net pointing at 127.0.0.1 so I don't get the banner BS. The link doesn't work for me, as CNN seems for redirect the page to an ads.doubleclick.net page, which results in a 404 and I can't see the original CNN page. Anyone else that blocks doubleclick in this manner getting the same thing?

    --
    -- Ever notice that fast-burning fuse looks exactly the same as slow-burning fuse? I didn't... (Edgar Montrose)
  33. Recursion by Vanders · · Score: 2

    Someone starts attacking you. You start attacking back, and then they see they are being attacked, have the same idea, and step up their attack on you. You then see that their attack has escalated, so you too escalate your attack. Wash, rinse, repeat, until you're both throwing GB's back and fourth. Not a good plan.

  34. You could use this to initiate/provoke attacks! by fence · · Score: 2

    Say you wanted to attack 'System X.com', someone who has large pipes and is difficult to flood, etc.

    You could initiate an attack against other machines who are known to "hack back", spoofing your packets to look like they are coming from 'System X.com'.

    'System X.com' then suffers from a distributed denial of service attack originating from those systems where the syadmins think they are "hacking back".

    ---
    Interested in the Colorado Lottery?

    --
    Interested in the Colorado Lottery or Powerball games?
    check out http://colotto.com
    1. Re:You could use this to initiate/provoke attacks! by genki · · Score: 1

      Wow - the perfect argument. How come nobody else thought of this?

      ---------------------------------

      --

      ---------------------------------
      Visit
    2. Re:You could use this to initiate/provoke attacks! by AndyGuy · · Score: 1

      Or even better - two sites X and Y which you know to have a policy of counter-attacking. Spoof X into attacking Y, stand-back and watch the fireworks.

  35. sounds kinda dumb by _Mustang · · Score: 1

    to just start ping flooding that IP without any other info about the situation. Let's be realistic about what we want when we define security. What we should really be doing is to create a system which could be called "the perfect firewall" because it is impregnable to outside attack; ignoring all those zombie packets and such that DoS-type attacks create would be a great first step. A long term solution (maybe rewriting TCP/IP?)which makes it unappetizing to even bother with this crap would be far more usefull to the computer world than taking a retaliatory stance. I think it's fair to say that if we Ping first ask questions latter then we're no better than *whatever* jerk started the whole thing..

    1. Re:sounds kinda dumb by jbarnett · · Score: 1


      True you have a good point, I will give you that, but please take the time to read these how-tos to give you more insight on where I was coming from when I posted the orignal comment:

      Joke-HOWTO.gz
      Sacartic-HOWTO.gz
      Do_not_take_to_seriously-HOWTO.gz
      Lighten_up-HOWTO.gz
      Karma-Whoring-HOWTO.gz
      Bad_joke-HOWTO.gz
      Really_bad_joke-HOWTO.gz

      Also the faqs might be of some help

      Joke-FAQ.gz
      Laugh-FAQ.gz

      These cover such questions as:

      How do I tell if something is a joke or not

      Just because it isn't funny, can it still be a joke?

      What if it is down right stupid, can it still be a joke?

      Some asshole on slashdot posted this sacartic list of howto's I should read, was he serious?

      These documents can be found under

      /usr/doc
      http://www.linuxdoc.org

      and are compressed using gzip, to decompress use the command

      gzip -d filename.gz

      if you don't have gzip install on your system, it is avaiable for a wide array of Unix platforms and can be download free at:

      ftp://ftp.gnu.org

      If you have any further questions regarding this, please contact /dev/null

      --

      "`Ford, you're turning into a penguin. Stop it.'" -THHGTTG
  36. Addendum by paRcat · · Score: 2

    Of course you need to make sure you aren't attacking an innocent bystander who's been compromised. I think that's kinda obvious.

  37. Risky.. by Cyclope · · Score: 1

    There's a 95% chance that you're attacking the messenger, and 99% of the time that messenger is innocent and just doesn't know what the hell is going on.


    *******************************
    This is where I should write something
    intelligent or funny but since I'm

  38. Crack Backs and Spam by Gorbie · · Score: 5

    I do not like crack backs or spam

    I would not try it from my box,
    I would not try it in my sox,

    I wouldn't use your subnet,
    I despise the cracks and spam and yet,

    you ask would I do it if I thought I could,
    you ask would I do it whether I thought I should,

    The 'puter in the middle is just a little pawn,
    They don't like it either, the damage that is spawned.

    they are witless, a helpless little lamb,
    and so I do not like crack backs and spam!

  39. c'mon now by penguin_nipple · · Score: 1

    An interesting concept.
    An eye for an eye concept is always fun. Kind of like being the Terminator.
    But this is the real world, with real implications for actions. If you were to walk into a meeting at work, discussing coding issues and a fellow programmer had stolen a bit of your code, taken the last cup of coffee, parked in your space, would you wack him then and there?

    I think not.

    So, beyond the hype, the kiddie posters on slashdot and the trolling story-tellers, there is very little reson to justify a counter-strike.

    I also believe that the best way to frustrate a hacker is to deny their attack, route them. And then watch them wet their pants when they get caught.

  40. You can't take them down forever... by astrophysics · · Score: 2

    Let's consider a situation where you're being attacked and you can identify where it's coming from and that they are indeed the cause.

    Yes, you could attack back. However you probably don't want to continue your attack forever, just for practical reasons. Once you stop, the attacker is probably going to like you even less than when you started. You might stop some dumb script kiddies, but you could have stopped them by blocking their IP. Real hackers will just be egged on more.

    Personally, I'm for getting people to leave me alone more than I'm for "justice". The only reason I'd consider retaliating is if they do some attack that I can't stop any other way.

  41. Reactive Measures != Hack Back by regen · · Score: 1

    Reactive Measures are not always the same as attacking back. Several intrusion detection systems have the capability to automattically update access lists on routers to stem the flow of traffic in case of an attack. This could be useful for some types of attacks.

    However, for DoS attacks this might not be useful because my spoofing many address you could cause the routers to become overloaded handling access lists.

  42. Bah! All we need is a full I.C.E. by drenehtsral · · Score: 2

    We just need some good Intrusion Countermeasueres Engines like in Neuromancer. Something to bake the central nerveous system of script kiddies. Oh wait, they are already mostly baked anyhow. Oh wait, Where am i? Where are my pants?

    --

    ---
    Play Six Pack Man. I
    1. Re:Bah! All we need is a full I.C.E. by Odud · · Score: 1

      The danger is that some fool will go out and develop one. And one day you will accidentally telnet to the wrong port on the wrong server and unwittingly unleash all the countermeasures against yourself. The plus side is that we could all watch from the sidelines as big company A slugs it out with big company B over some trivial violation of their networks. It could be the next big spectator sport...

    2. Re:Bah! All we need is a full I.C.E. by Azog · · Score: 2

      Yeah, well... but ICE, as Gibson defined it, stands for Intrusion Countermeasures Electronics. Gibson describes it in more detail in Count Zero than he did in Neuromancer. And, in Gibson's book, only Black ICE, (which was illegal), had the capability to strike back and trash the attacker's nervous system.

      Interestingly, there is a software program called Black ICE that a friend of mine runs on his cable-modem connected NT 4 box. He sees a LOT of portscans and similar low grade attacks. As far as I know, BlackICE doesn't do any counter-attacks though!


      Torrey Hoffman (Azog)

      --
      Torrey Hoffman (Azog)
      "HTML needs a rant tag" - Alan Cox
  43. The innocent people are already screwed... by thc69 · · Score: 2

    ...so why not at least stop the attack short?

    That is, the argument that goes "Any DDOS attacker worth his beans would be using innocent people's machines to attack, anyway", although I generally agree with it, has this one hole: Those machines are ALREADY cracked, their network pipe is ALREADY saturated with the attack they're unknowingly doing to you, so they're ALREADY down! You attacking back just ensures that they FIND OUT that they were having problems, no? Personally, if my system was cracked and being used to attack someone, I'd want my system downed right away, even if it had to be done by a counterattack directed at me!

    That said, I'm guessing that innocent third-parties getting attacked from both sides won't care who's right and who's wrong, they'll sue whoever they can trace easier - and that will be the retaliating sysadmin.

    --
    Procrastination -- because good things come to those who wait.
  44. Use a filtering proxy by Phaid · · Score: 2

    I use Junkbuster and don't have that problem, I also don't have to look at the banner ads. The problem you're having is that attempting the connection to doubleclick returns an error (due to your box reseting the HTTP connection to localhost), which causes the page to stop loading. A filtering proxy will instead return a 1x1 pixel GIF or some other content, so that your browser is fooled into thinking everything is OK and the ad loaded.

  45. Never an excuse for internet vandalism by lar3ry · · Score: 2

    I'm sorry, but if something is wrong, it is wrong. Period. End of statement. It would be similar to saying that if I catch somebody shoplifting in my store, I'm allowed to break into that person's house and steal his television. As was pointed out in a previous thread here, two wrongs do not make a right.

    However, I do not see anything wrong with using such tools as exist to try to determine the identity of any person that attempts to hijack my machine. This isn't illegal, by any definition of the word. And it gives me something more to tell the authorities (when applicable); rather than a "somebody cracked my system," I can tell them "so-and-so cracked into my system, and here's my proof."

    My system has been targeted by a couple of brain-dead individuals over the past few years. I've used whatever tools I could find to try to track those people down.

    I'm happy that the US FBI takes such things very seriously, and have developed (or otherwise obtained) tools and techniques far beyond what I can do as an individual. I am currently satisified with this, although I had once been the subject of an attack that originated in India. I don't know if a super-jurisdictional legal authority would help here; it might be worth looking into.

    I see no need to set up an internet vigilante force to "string 'em up" -- lynch mentality is never something that I think a polite society should strive for.
    --

    --
    "May I have ten thousand marbles, please?"
  46. Absolutely....not. by Psarchasm · · Score: 1

    [simplistic, but worthwhile...]

    1. Gather your information.
    2. Backup your logs.
    3. When satisified with logs, and initial investigation, blackhole them at your perimeter.
    4. Call your upstream, request blackhole at ingress point.
    5. Begin tracking from logs and if your site is high profile enough tracking from all points up the line.

    Invest in an opensource honeypot machine. Invest manpower in your choice of NID software.

    Choose to take the high road. Customers will understand a downtime due to something like this. Customers won't understand that you decided to attack back at some ISP that didn't have a clue how to manage their machines.

    Sure it may seem satisfying at the time to root an attackers server, but guess what... with almost 100% probability the hacker in question does not own that machine. And the person who does probably won't be thrilled that you just rooted his box. Same goes for a DoS retaliation. In these days of misconfigured proxies, IPv4 vulnerabilites, and weak TCP/IP stacks - the chances that you are actually hitting back at the right network are next to nil.

    And to sum it all up... Even if you knew with 100% accuracy where the attack was coming from - what kind of moron would you have to be to decide to reverse attack instead of taking legal action against that network?

    (Now if you work for some military or federal government agency and this is some suspected foreign power you are being attacked by... well... - disregard I guess.)

    --
    http://windows.scares.us
  47. Terrorism on both sides of the story by MousePotato · · Score: 2

    I totaly believe that its ones inate right to slef-defense if being attacked. This right though should be limited to self-defense in a physical manner if that is how you are being attacked. Being attacked on the net and fighting back in this manner just doesn't seem like the correct thing to do. As an ISP/IT company Conxion has a responsibility to handle the attack through the appropriate channels. If a US citizen cannot legally do this type of thing then why should the fact that Conxion is a major corporation shouldn't make it acceptable. Especially troubling is this little blurb: "Conxion was so proud of having given the attackers a dose of their own medicine that it issued a press release about the incident." My first thought after reading the press release was DUH! you just comitted a crime and then made a public announcement regarding your actions. This alone should be enough evidence to take some form af action against Conxion based on thier own admission. One should not stoop to an act of terrorism as a form of retaliation. You would think that a company with such strong Microsoft affiliations ought to be weary (after all the DOJ/monopoly actions) of doing such a thing. Two wrongs don't make a right...no matter how good it feels.

  48. There is nothing wrong with Self-Defense by Picass0 · · Score: 2

    Like my parents told me when I was growing up "never start a fight, but if you find yourself in a fight, you finish it."

    If a person is attacked in their home by an intruder most people would be inclined to fight back. If an intruder breaks into a business, many big companies have armed guards and off duty cops as security. It is not wrong to repel an attacker. An attacker may be hurt in the process of being repelled. Most people, and even our system of law, will usually find the attacker asked for it.

    So why should computer intruders be different? Why is it OK for a person to fight back bodily but it's hands-off if it's over a computer network? Do computers have more rights in our society than humans? No. Not the last time I checked.

    So why not have aggressive firewall software? If some script-kiddie tries to hit your machine and your software turns around and toasts his, you'll be doing him/her a favor in life.

    1. Re:There is nothing wrong with Self-Defense by Tim+C · · Score: 3

      In the case of defending yourself physically, you can be pretty certain that you're hitting the right person. Your life may also be in danger if you don't fight back.

      When your machine is under attack, and you strike back, you can not be certain that you're toasting the right machine.

      Whatever you may think of a person who's machine is so open to attack that someone can successfully use it to launch an attack against yours, they do not deserve to have their machine toasted for it. If you do that, you're little better than the cracker you're trying to hit back at.

      I can perfectly understand the desire to attack, but the likelihood of hitting the worng person is just too high for my liking.

      We all have a duty to be responsible netizens, after all.

      Cheers,

      Tim

    2. Re:There is nothing wrong with Self-Defense by Sirrion · · Score: 2

      The problem with defending yourself is that other networks will be affected by your retaliation. How many routers will your defence cross?? That's why you don't see armed guards in a shopping mall. Guess who's responsible when your guard harms/kills an innocent bystander while defending your store! Don't get me wrong, I'd love to lock up a hacker's PC if he's attacking me but I don't want to bring down an ISP's router in the process.

    3. Re:There is nothing wrong with Self-Defense by dingbat_hp · · Score: 2

      Self Defence is OK, but if we extend the analogy with IRL law, then it has defined limits. Only "Reasonable Force" may be used, and anyone who uses "self defence" also lays themselves open to a charge of assault.

      If you're being hammered on offensively by a router that's actually causing a flood, then it's reasonable to retaliate in ways that might reduce the incoming flood. OTOH, it's not reasonable to try to take down their web server, just because they're taking yours down (assuming they're separate machines). A measure that is defensive is reasonable, even if "offence is the best form of defence".

      Equally, mail-bombing is not acceptable as a response to an immediate threat. It's a delayed measure that won't stop an ongoing attack and is only there as a means of revenge. If you're under a chronic Spam attack though, email may be a reasonable defence, as it's now a comparable timescale.

      There's also the problem of injuring innocents. Defending yourself in the immediate is reasonable, even if it's a compromised 3rd party machine, because you're trying to fight a clear and present danger. Owning it and rm * -r, just because it's an open mail relay that's Spamming you is excessive and should lay you open to as much of a claim for damages as if you'd cracked it of your own evil intent.

      If you attack an unrelated box, because a spoofed header made you think that it was the source, then you're liable for the damage you cause. If you shoot back when attacked, then you're expected to be competent enough to shoot straight at the real targets.

    4. Re:There is nothing wrong with Self-Defense by Picass0 · · Score: 1

      When your machine is under attack, and you strike back, you can not be certain that you're toasting the right machine.

      Tim C -
      Your major concern is when a hacker hides behind a vulnerable machine and hits a distant target. In the process of the target defending itself, you are assuming there will be innocents between the attacker and intended victim. Your concern seems to really be with the technology of tracing the IP back to the right box rather than "is it right to fight back?"

      So what if I am sure? Is it ok then? What if technology improves and I could be certain?

      Internet Appliances are going to become more and more common. What if being "Internet ready" meant having defensive software? What if good, well configured firewalls became as common as anti-virus software? It would become more difficult for a cracker to put a series of buffer machines between him and the target, because he just might get smacked by the first machine he touches.

      I'm not talking about swinging my fists blindly. I'm saying IF I KNOW FOR SURE then why not?

    5. Re:There is nothing wrong with Self-Defense by Tim+C · · Score: 1

      My only concern is with hitting the wrong person's machine. If I satisfied myself that I was going up against the real target, I'd do my best to make them wish that they'd picked a different machine to attack.

      It's all too easy to see a hostile access attempt from a machine and smack them down, only to find that they'd been cracked two days previously and knew nothing about it.

      I guess in the end, it all comes down to how sure you, yourself, have to be. Personally, I would be very, very careful not to attack the wrong target. That's really what I meant by being "a responsible netizen".

      If you know for sure then go ahead, toast him. I'm just not sure that can be sure.

      Cheers,

      Tim

      Disclaimer: This post is brought to you by several glasses of champagne :-)

    6. Re:There is nothing wrong with Self-Defense by Picass0 · · Score: 1

      Only "Reasonable Force" may be used, and anyone who uses "self defence" also lays themselves open to a charge of assault.

      I agree, there are appropriate ways to respond to certain types of attacks. Let's face it, most of us get port scanned (whether we know it or not) and that's not justification for an counter attack. In my case, I'd be likely to incure the wrath of my ISP @home, who port scans machines all the fscking time.

      If you shoot back when attacked, then you're expected to be competent enough to shoot straight at the real targets.

      Absolutely. I couldn't have said it better. But you still seem to be agreeing with me that it's OK as long as you have good aim. The people who have responded to me today don't seem to have a problem with fighting back as much as they express caution at not violating the systems of "innocent bystanders".

  49. i really dont like this 'method' by dphase · · Score: 1

    For at least 5 years I've heard of computers automagically counterattacking a mailicious person. Personally, I think that this is not the idea to go about things. As stated in a post above, chances are, the computer that is attacking you is one of someone innocent that has had their computer compromised as well.

    But that still isn't the thing that irritates me. This method is completely childish. It is equivalent to a youngster kicking down someone's sand castle and then the victim runs and kicks the little punk's sand castle down. Okay, I'm rambling. But seriously, there are other solutions.

    This morning my boss sent me this url in an email and told me to 'investigate.' I'm really hoping that he doesn't think that this is a decent security method, because it is completely unethical and illogical. I've got to figure out a way to talk him out of this -- soon.
    --
    Joshua Deere (dphase@locnet.net)
    UNIX Systems Administrator, LOCNET Internet Services

    --
    jd
  50. an appropriate haiku by fred_the_slow · · Score: 2
    • script kid hacks machine

      anger, rage come over you.

      hot grits give relief.

  51. Tred Carefully... by farrellj · · Score: 2

    As a security professional (ie, do it for a job), the last thing you want to do is counterattack...as good as that may feel, at best, it will muddy the waters, and at worst, it will hurt innocent, (probably) insecure, bystanders. The most annoying thing you should be doing is contacting the Tech/Admin contact of the domain(s) that are attacking you, and letting them know what is happeneing. And if that is in the middle of the night for the contact person...

    ttyl
    Farrell

    --
    CAN-CON 2019 - Ottawa's only book oriented Science Fiction Convention! October 18-20, Sheraton Hotel, Ottawa, Canada h
  52. Justice on the Internet? by Alien54 · · Score: 1
    In asking about hacking back, what everyone is looking for, of course, is a way to implement justice on the internet.

    Well, maybe not everyone. Some might want to monopolize the whole thing for themselves (like spammers, the RIAA, etc.)

    and of course, we also have the whole Freedom of the Internet crowd who want as few rules as possible. The freedom of the early internet was made possible by the fact that it was smaller, the technology was not as developed (and so not as liable to abuse) and that there was a something of an educated culture where individual ownership and responsibility was at least recognized. You didn't trash your servers because that screwed up your link to the world.

    Now the masses and the democracy of the mob makes the internet what it is, until we can stage our own revolution of the mind to either ensure people grow up or are somehow restrained into behaving somewhat more responsibly.

    This of course opens up another can of worms, since no one agrees of what it all should look like in the first place.

    Unfortunately this is what is needed to make progress in this area, because otherwise this is just going to get worse.

    --
    "It is a greater offense to steal men's labor, than their clothes"
  53. next wave DoS? by joshsisk · · Score: 1

    What happens when you slam a corporate or university computer system the attacker used to lauch his attack? No computer criminal worth his salt would use his own machines to do this.

    If reactive software gets popular, I expect a whole new twist to the DoS attacks: get access to the company you want to hurt's computers and launch a mild attack from there (or spoof it to make it look like they are attacking). Direct the attack at a company who is know to have massive counter measures. Wait for their server to crush the one you "attacked" from. Laugh evilly.

    I can imagine a scenario where net traffic grinds to a halt over this, with smart computer criminals triggering everyone's defenses at once, much like the cold war fears of WW3 being kicked off by computers. Hopefully it won't get to the point where these things are "pre-aimed" at enemies, but you never know.

    josh sisk

  54. As if this should be an issue by woody_jay · · Score: 1

    I'm sorry, but I don't see any reason if you are being hacked that you don't have every right to just give it back to them. This is cut and dry. There should be no discussion on the matter. If someone hacks me, be prepared to get some back. Case closed.

    --
    Of course, that's just my opinion, I could be wrong.
  55. Can't fight back with a cable modem... by ^_^x · · Score: 2

    I have the @Home cable modem service through Shaw (a cable carrier in western Canada,) and I almost lost my account for portscanning someone who was looking for trojan horse programs. (In the case that got in in trouble, I believe it was SubSeven.)

    I had some personal firewall software, and I decided I'd portscan anyone who tried to get into my system since if they had even the most basic defenses, they'd know I saw them.

    Either way, apparently, any use of portscanners on systems I don't own is explicitly prohibited in the TOS.

    Ah well, it doesn't bother me that they were scanning me for vulnerabilities; it bothers me that one would scan me, then report me when I scan them back. -_-;

  56. Automated reactions could be looped by gotan · · Score: 4

    It's a bad idea to set up something that 'automatically hacks back' e.g. launches an attack back at the attacker. The reason is, that now the hacker doesn't even need to launch his own attack, he only needs to tickle a system in the right way to provoke a reaction, if that reaction acts against another host with the same system installed: wonderful, we have a loop.

    It gets even better if the mail, seeing that one mailer is overburdened, gets redirected to an alternative host (or something similar for other services) ... now all we need is the routers in between reacting to the enhanced network traffic for a nice chain reaction (did you ever see the video with the room full of tabletennisballs on moustraps).

    Just try to imagine that you are the sysadmin who later should sort out the mess, maybe it was even started by some accident or some rampant virus.

    --
    "By the way if anyone here is in advertising or marketing... kill yourself." -- Bill Hicks
  57. Businesses? by xinu · · Score: 1
    At what point did we lose sight of why the internet is here?

    It seems all I ever hear is eCommerce this or eBusiness that. In the article they point out that you may cripple an innocent business. I thought the whole point about the internet was freely distributed information, not a new mdeium for commerce.

    If the NRA could somehow migrate the whole principle of gun laws to the internet and defending yourself and your information then we truly would be free. IMHO.

  58. Haiku by 575 · · Score: 2

    Juvenile weenie
    Cracked your weak security
    Install SSL

  59. Re:Not that I support it but.... by bonehead · · Score: 1

    but it seems to me that if some legit business has their server cracked into, and used in a DoS attack, and the server being attacked reversed the packets, thereby crippling a legit business' server,

    Just for the record, if my firewall machine were compromised and used in such a way, I'd want to know about it. I'd prefer to have it disabled in this manner so that I could set about the task of locking down whatever hole was used to get in.

    In my mind, this is preferable to having it sit there in a compromised state indefinitely. If my machine is compromised, I WANT it to be disabled.

  60. Responsibility by crosseyedatnite · · Score: 1

    >So, if you owned a gun shop which was robbed
    >because you bought cheap padlocks, and your guns
    >were used in a drive-by shooting, would you
    >consider it fair if the shooting victim's
    >friends drove by your shop and blew it to
    >Kingdom Come?

    Yes. The ownership of large numbers of guns requires the responsibility to ensure that they do not fall under unauthorized use.

    If you put a server out there that can be used to damage others, its your responsibility to ensure that you don't allow it to be used in that way. Even if machines used to launch an attack are desktop machines that became 0wn3d by some hax0r, I see no reason why the ISP couldn't cancel the machine owner's account until such time as they mend their stupid, stupid ways.

    --
    e to the i pi equals negative one
  61. WOW - actual use of the term "cracking" by bsdbigot · · Score: 1

    I was pleasantly surprised to see the term "cracking" used in place of "hacking" near the end of the article. It's hard to believe, I know, but it almost represents responsible reporting on behalf of CNN - something that comes as even more of a surprise.

    --
    main(){char I,l,O[]={'-',1-1,0,(1<<5)-1,0+'-',-10-1,-10,11-0,- 1,-100};for(I=l=0;l<10+0;put
    1. Re:WOW - actual use of the term "cracking" by Mr.+Adequate · · Score: 1

      I suspect that that was just a case of the copyeditor falling asleep at the wheel.
      Check the Hacking: Two Views and Hacking Primer links in the same article to have your cynicism duly reinstated.

  62. Re:Moot - hacking back as self-defense. by BigBlockMopar · · Score: 1
    1. Hackers are not bad people they just are curious and good at finding holes.

    Well, some of them. I'm sure that we've all either done some things (as newbies, by accident, or without thinking) that would qualify as hacking....

    loop:
    ping slashdot.org
    goto loop

    (Never use this method to see if you've got your high-speed internet connection stable... although, this is more likely to make your ISP very angry for loading down their DNS servers.)

    But the bigger issue, I'd suggest, isn't script-kiddies with boredom as a motivation. It's the "pros"; those who are out there deliberately trying to take you down but lacking the skill required to do it properly. Look at e-hippies vs. WTO.

    Since these "e-hippies", like most other radical left-wingers, are so caught up with their agendas that they don't attempt to learn about technology before they use it, they're sitting ducks when they attack you.

    In this case, while I'm sure it's technically illegal, it could take *so long* to get the proper authorities to do anything about it. I mean, you've got jurisdictional issues, contact issues, and then the time it takes to get a cop to put down the donut and get off his butt.

    I'd argue that reflecting their DoS attack back at them is merely self-defense, not a separate attack. What you're doing is no worse than fighting off the guy who just punched you in the face.

    3. You are know better and are breaking the law in exactally the same manner.

    Sure, I know better. I didn't, and I wouldn't, start an attack. But I have to be able to defend myself against attacks. If someone breaks a window on my business and runs off, I'll chase him down and hold him there while I wait for the cops. If someone punches me in the face, I'll take whatever steps are necessary to restrain that individual until the police arrive. And finally, if a DoS attack occurs, if I can perhaps shut down their computer by reflecting their malformed packets back at them, I'll do it, in order to maintain the services provided by my own computer.

    I agree it's a gray area; it's definately one that needs careful attention from legislation.

    --
    Fire and Meat. Yummy.
  63. Actually not so moot by dbrutus · · Score: 2

    The government wants to have its cake and eat it too. It has had a decades old policy of counting encryption technology as munitions so why doesn't the 2nd amendment come into play? Just because our arms are electronic doesn't mean that the penumbra of the 2nd amendment doesn't cover them. Self defense does apply with all the benefits and risks associated with it. It's just that human shield situations (zombie computers) exist much more frequently in electronic fights than in physical ones.

    The laws exist, it's just laws that leftists are uncomfortable with so the available tools and precedents are not taken advantage of because too many of our defenders come from the left tradition. That's not to say that they need to change their voting patterns (or at least it's not germane to this discussion) but they have their own blind spots just like people coming from the right tradition do.

    I know, I know, we've invested a lot of capital to have encryption code escape from the munitions designation. But we don't oppose the idea that encryption or other technology can be dangerous, we oppose the law because it's stupid, hindering the good guys while leaving the bad guys with all the technology they need. This also happens to be the argument that the NRA uses on most gun control measures they oppose. Could we have allies we didn't even know about?

    DB

    1. Re:Actually not so moot by ennuiner · · Score: 1

      Uhhh maybe: http://www.tuxedo.org/~esr/geeks-with-guns/

      --
      Somebody please, tell this machine I'm not a machine.
    2. Re:Actually not so moot by Slide100 · · Score: 1

      But the 2nd amendment is in the United States' Constitution......does it apply to attacks coming from other countries? That would be a declaration of war, wouldn't it?

      --
      >B2 Spirit, radar contact......
    3. Re:Actually not so moot by dbrutus · · Score: 2

      The rights written about in the US Constitution are rights of the people granted by God. The rights do not cease when crossing boundaries. It is just the government's respect for such rights which may change.

      Rregarding your question of a declaration of war, if some drunk idiot fires a potshot across the border, does that mean that the US and Canada are at war? Of course not, since it was not a conscious act of the state. They tend to call these things 'border incidents'. But states do have their relationship suffer if there is an increase of such cross-border incidents without reaction from the source state's government or if the source state isn't taking reasonable precautions to minimize such incidents at all.

      The point is to raise the seriousness of attacks and to fit cyber acts into existing law framework. Take a look at militia statutes and you will find some very good law on the subject, frankly it's the only body of law that covers such things.

      DB

  64. How I fought back by Anonymous Coward · · Score: 1
    Once I ran afoul with some lamer on IRC. He decided to be a packet warrior. I logged everything with snplog then went through the logfiles. I copied and pasted the relevant parts of the logfile to emails, along with some information about the form of attack, it was a smurf attack. I sent the emails to admins of all systems that pinged me. The idiot also pinged me from time to time from his system, that and I did a whois on him on IRC, so I bundled all of that up and sent that information to his ISP. Along with some of our IRC conversation that I logged. The part where I told him I was going to do all of this, and he derided his ISP, and said in effect that they were way too lame to ever do anything to him. Well, to make a long story short pretty soon the attacks stopped. It didn't happen right away, at first his ISP was reluctant to cut off a paying customer. Eventually they came around though I think, either that or really warned this guy. I recall in my last conversations with this individual him pleading with me to recant what I'd told his ISP. Supposedly he lived in an area of limited access, or had already used up all of his other connectivity options where he was. Oh well.

    Some people really don't realize that their actions can lead to repercussions.

  65. Re:Moot - hacking back as self-defense. by vsync64 · · Score: 1
    That won't hurt anyone. What you want is:

    loop:
    ping slashdot.org &
    goto loop

    Another neat one is:

    loop:
    echo `yes` &
    goto loop
    --
    TO BUY A NEW CAR WOULD MAKE YOU SEXUALLY ATTRACTIVE.
  66. Biggest Pipe Wins by CrazySailor · · Score: 1

    Connexion blocked it at their pipe entry. The hippies lost.

    --
    -- Improve Windows - Buy a Mac!
  67. A more interesting question in my mind... by Anonymous Coward · · Score: 1

    is when will one of the victims of a DDOS will file a negligence suit against one of the hacked middle-men. I mean, let's face it, there's no way a corporation is going to come close to recouping its losses by suing the stupid teenager(s) responsible for a DDOS. But if a lot of the problem was caused by another entity's poorly-secured computers... Just a thought.

  68. three rights make a left by aozilla · · Score: 1

    if you can prove that the hacker is who you think she is, hacking back is only going to decrease your chances of winning a settlement to compensate for your damages. if you can't prove who it is, then you are risking hacking an innocent bystander (and possibly being sued/arrested, rightfully so).

    --
    ok then your [sic] infringing on my copyright! Could you as [sic] me next time before STEALING my comments for your own?
  69. Not convinced about that... by chickenmadrasplease · · Score: 1

    > There's a reason that zombie is there in the first place: the computer was left wide open by the owner

    What about those of us that leave the car locked with a shit-hot immobilizer/alarm system active? Someone determined and skilled enough will take the car for their own ends or maybe throw a brick through the window etc etc.

    So maybe you're saying that I shouldn't have a car and that I bought it upon myself?

    Perhaps we should all get rid of ours cars viz. our servers. Poof! Where's the Net gone?

  70. Never a good idea by c+o+r+e · · Score: 2

    It is never a good idea to "hack back" for many reasons:

    * How can you be sure that a) the attacking site(s) are the real attackers and b) that the
    attacking sites are _knowingly_ attacking? IP spoofing or using zombies to a ttack are generally
    very easy.
    * If it's illegal to be hacked, it is illegal to retaliate. You can't steal someone's lunch
    because they steal yours.
    * It could only exacerbate your problem if you piss off the attacker(s). You don't know who you
    are dealing with.
    * You are then legally and criminally liable if you, for example, DoS amazon.com because you
    detected an attack from them and they sue you or the Fibbies come knocking on your door.
    * What if you trace an "attack" to a single IP you assume is a desktop computer and turns out to
    be an AOL proxy and you DoS 10,000+ lusers? AOL won't like that nor will their customers.

    The people, like the one in the article, who gloat about "hacking back" make my skin crawl. 7h3y
    ar3 such 31337 d00dz n 7h3y g07z such ski11z...NOT! *gag*

    BTW, I've seen most often people getting IP addresses slightly wrong when they complain about a supposed hacker coming from my Company's network so what if you get the IP or hostname a bit wrong and attack the wrong site?

    -core

  71. Hacker vs. Cracker by ceswiedler · · Score: 2

    I'd like to point out that the approximate number of uses of "hack" vs. "crack" (in about 165 messages) is around 2 to 1 in favor of "hack". (~75 vs. ~40). I thought we were all trying to change the usage of "hack"? How on earth are we going to do this if we don't use it correctly ourselves?

  72. Sniff, document and prosecute by jabber · · Score: 2

    The article makes two good points against counter-attack:

    1. Hitting an innocent bystander - since attacks usually come from hijacked and spoofed locations/addresses.

    2. Retaliation against an illegal attack by the same means is also illegal - vigilanteism doesn't solve the problem, it reduces it to a pissing contest.

    The suggestion (mine as well as that of respected experts :) ) is to log everything, look into it to try to identify the culprit conclusively, prove fiscal loss and/or denial of service - a.k.a resource theft; and then take the nice report to the authorities.

    If we retaliate against a script kiddie, we'll either hit Grandma Smith who gladly gave her AOL password to an 'AOL representative' online, or we DOS the punk - so what?

    If we get the law involved, we get him effectively killed in the computer industry - and even have him pulled off the lecture circuit a'la Mitnik.

    170th post!!

    --

    -- What you do today will cost you a day of your life.
  73. The FBI and attacks by BilldaCat · · Score: 1

    Actually, I'm in the process of dealing with the FBI about a intrusion on a system of mine, and so far they have been fairly responsive and willing to go after this guy. I only suffered maybe $3k in damages, but since my log info on this guy is really clear-cut, they think it's an open-and-shut thing for them, and are going to persue it..

    Or so they say.. (fingers crossed)..

    --
    BilldaCat
  74. Positive effect of bouncing DOS requests by ErnstKompressor · · Score: 1

    It would seem that by bouncing back web page requests, the zombie boxes would at least be alerted to their own unknown complicity in the attack. They could then respond earlier, hopefully lessening the impact of the original attack.

    --
    We apologise for the fault in this post. Those responsible have been sacked. -- Signed RICHARD M. NIXON
  75. hacking back by pyrrho · · Score: 1
    Once we got flooded by a guy who considered our newsletter spam. The problem... he had signed up for the newletter when we had a different name. As a streaming service, his attack didn't affect our users, such was our excess bandwidth. We considered flooding him back but there was no real chance of that. Instead, we found the ISP it was coming from, found out the name of the user (forget how, but I think it was IP comparison with our user logs, since the guy was registered) called the ISP and said, "you have a user, John Doe, that's flooding us." They misunderstood and said, "I'll connect you..." Turn's out John Doe was their sys admin! He was very polite on the phone and apologized proffusly, and it's a case where I think he may be less inclined to abuse his resources (and maybe put their actual value in perspective too).

    This is probably not as funny to read as it was to experience. The relevant fact may be that we might have hacked back at this guy, but only because he was so pathetic as to just be abusing his privs at a tiny ISP. The real hackers can't be traced back in three minutes and if they can... well that's probably not the real person. If you can trace them fast enough to attack them... start calling. Hack them with the real world, where they are disoriented... :) -pyrrho

    --

    -pyrrho

  76. !legal by rifter · · Score: 1

    Since cracking is illegal, this is not a good plan no matter the justification. Besides, as was pointed out in the article, you would most likely be attacking an innocent victim. That victim might be trying to figure out how they got hacked, and the signs will end up pointing to you.

    The self-defense argument is spurious at best. First, retaliation to an illegal act with another illegal act has AFAIK been considered by the courts a seperate punishable illegal act. The motive is irrelevant except that its existence would actually help you get convicted.

    Retaliatory acts of self-defense are generally only allowed after other defensive methods have been exhausted (like running and hiding). Even then only such defense as is necessary to end the attack is allowed under the law. Hacking back when you could shut down and harden a router is not allowed I would think.

    I am not a lawyer. The only legal advice I can give is that if you need any you had better get one.

  77. No by Grimster · · Score: 1

    Simple, two wrongs don't make a right. Granted I'd almost assuredly fight back "myself" but if I was at work I wouldn't due to the fact that breaking the law against someone breaking the law against you still means you're breaking the law, I don't see much way around that, IANAL but that seems pretty cut and dried.

    If you are getting mugged and you slip the mugger's watch off in the tussle (and his wallet) you still broke the law! The judge is liable to laugh but he'd about have to find you guilty.

    --
    --- www.f-theocean.com
  78. why do you do this? by rifter · · Score: 1

    You are so funny, but why do you even try? most people know who you are.

  79. You should be able to fight back. I do it anyways. by Anonymous Coward · · Score: 1

    In 1999 my company site was hacked. We tracked him down, and sued. If not for hacking his system back, and finding his connection info, we would of never found him.

  80. Re:Moot - hacking back as self-defense. by BigBlockMopar · · Score: 1
    loop:
    ping slashdot.org &
    goto loop Okay, I'll bite. What's the ampersand for?

    :)

    --
    Fire and Meat. Yummy.
  81. Can we say "self defence" by dyskordus · · Score: 1
    I say yes you can "hack back". If someone came up to you on the street and started hitting you in the face, and you punched them back, it would be pretty cut and dry that you were in the right.

    If someone was trying to D.O.S. you, or execute a rm -rf, etc, redirecting packet flow, or whatever, back at themwould simply be defending yourself.

    --
    "Reality is less than television."-Brian Oblivion
  82. Practically speaking .. by kd5biv · · Score: 2

    Another poster made the comment that the whole point of security is to make the cracker go away.

    Tactically, one could say a retaliatory crack against the offender *might* serve as a deterrent. It might also invite further attacks that otherwise would not have happened if the attacker had not been provoked by an intrusion into *his* territory (and don't forget crackers are very territorial creatures..) and the whole episode can easily escalate out of control. Strategically, you have to take the larger situation into account and move into the psychological realm. Since you want to discourage people from playing games with your system, the best response is probably something that takes the fun out of it by denying them the satisfaction of a response. IP/subnet blocking is a good example of this -- they can poke at your host all night long and not have any noticeable effect. A strategy that ties in well with this approach is one I like to call the 'threshold effect' -- anyone below a certain nuisance threshold is ignored, and once they become disruptive enough to be worth going after, they have enough of an attack signature to be traceable. Track them down and identify them first, before they know they've triggered the alarms, then let them know you know exactly who they are and what they're up to and would they please cut it the fsck out?, then go to the cops (net, local, or federal as the case may be) if nothing else works. Depending on how much sense they have, one or the other of these measures is likely to encourage them to play nice .. Needless to say, a) being sensitive to being port/IP scanned and b) making sure your hosts don't respond to any ports you don't run services for will help too ..

    --


    73 de N5VB (ex-KD5BIV) AR SK
  83. Defensive Agression by shren · · Score: 1

    I don't see anything wrong with attempting to crash a machine that is attempting to crash you. Think about it. If the opposing machine is owned by a good guy, then the good guy's security has already been breached. One, thier carelessness is placing your buisness in danger. Two, if you do take down thier machine - do they really *want* a breached machine up and running?

    I think it's simple. Thier machine lost it's right to be up once it started attacking mine. I think it was the only way to effectively defend against a well-prepared DDoS attack, and were I the guy making the calls over there, I'd do it. Remember, any machine participating in a DDoS has been breached, so there's already a case of negligence on the other end should the case end up in court.

    --
    Maybe the state's highest function is to grind out insoluble problems. (Zelazny, Hall of Mirrors)
  84. Re:Moot - hacking back as self-defense. by gulped · · Score: 1

    umm... putting it into the background (so you can ping almost instantaneously again). since your
    average ping takes 5 seconds, a loop that pings
    every 5 seconds isn't exactly very useful.

    or heck, do this:

    loop:
    ping -f slashdot.org &
    goto loop.

    this'll screw everything up. heh.

  85. Attack-back criteria by Todd+Knarr · · Score: 1

    Personally I consider returning the attack to be justified only once two criteria are met:

    1. I have traced back the source of the attack, contacted the admins and/or owners of the source and either gotten no response at all or had them refuse to do anything about the attacks.
    2. The attacks are sufficiently serious that even the best filtering will still leave my systems impacted to an unacceptable degree.
    Anywhere short of this point, returning the attack isn't justified.
  86. Stupid Fucks by CaptainZapp · · Score: 1

    Basically both of them, But just clogging the net with a ton of additional bandwith is just plain dumb. Oh, and the activists where just plain dumb to have all packages originate from the same IP address. After MP3s, videos, stoopid porn and DoSA clogging the net, please give me back good ol' ascii text...

    --
    ich bin der musikant

    mit taschenrechner in der hand

    kraftwerk

  87. "Hacking back" in practice by Chakotay · · Score: 1

    I'm on a big campus-wide LAN here, with 2000 students' computers connected to it, and out here I've seen in action, and participated in multiple "counter-hacks". When the whole network was still tied together with 10Mbit hubs instead of the 100Mbit switches we have now, it was quite standard practice to monitor the packets flying across your hub for stuff that didn't belong there, and retalliate if necessary. Winnuke, bonk, boing, nestea and other such exploits were used by vigilantes to police the network.

    For example, it was not allowed to use the IPX protocol tied to Windows Networking because that caused much traffic. People trying to download files from eachother using IPX were often nuked. Once when I was monitoring, I found three people ping-flooding a third, who tried simultaniously to retalliate together with somebody else, also by pingflooding, usurping the entire bandwidth of the entire network. A few faulty packets spread between them quickly knocked that war out of existence, and returned the network load back to normal.

    Playing vigilante on the internet is not bad as such, as long as you really know what you're doing, and aren't causing any damage beyond taking away an attacker's ability to attack you, possibly by crashing his system, but preferably by yanking his connection away.


    )O(
    the Gods have a sense of humour,

    --

    Never underestimate the power of stupidity
    To err is human, to moo bovine
    1. Re:"Hacking back" in practice by lemox · · Score: 1

      it was quite standard practice to monitor the packets flying across your hub for stuff that didn't belong there, and retalliate if necessary. Winnuke, bonk, boing, nestea and other such exploits were used by vigilantes to police the network.

      No offense, but that doesn't make much sense. If all the "vigilantes" are monitoring for things that don't belong, wouldn't they be smacking each other far more often? That sort of script kiddy nonsense would definately qualify as something that "doesn't belong".

      --

      "We obviously need a new moderation category: (-1, Woo-fucking-hoo)" --Mr. AC

    2. Re:"Hacking back" in practice by Chakotay · · Score: 1

      No offense, but that doesn't make much sense. If all the "vigilantes" are monitoring for things that don't belong, wouldn't they be smacking each other far more often? That sort of script kiddy nonsense would definately qualify as something that "doesn't belong".

      *shrug*, so somebody sniffs a few passwords? Here's to SSH and PGP. Just for the heck of it I too spent a few hours sniffing mail passwords. Within an hour I already had a whole A4 paper full. And then? I mean, it's no fun peeking at somebody's mail. The fun part was seeing how damn insecure this whole email thingy is.

      True, sniffing doesn't belong. Just like guns don't belong, yet the police use them. (News flash: guns are illegal here). Nobody really cared about it unless you abused it. Just like when BackOrifice and NetBus were out. I had grand screwing with people's minds when I found them running one of those. Just like lots of other people on campus. But as far as I know nobody actually destroyed anybody. Just toy with them, then warn them and tell them how to get rid of it. After having played with a few, the fun kind of drops off, you know.

      Sure, sniffing doesn't belong. But it's possible. SNT and CIV, the providers of the network, ofcourse couldn't use those methods, so they allowed the vigilantes to police the network. But if you stepped out of line one inch, you'd have your access revoked.

      Now ofcourse sniffing isn't (easily) possible anymore, because we have switches now. But it IS possible to log in to those switches and look around. Which is also illegal, but nobody minds unless you start screwing with things. Backend networks are also illegal, but nobody minds as long as you have the gateway configured properly.

      The rules are there to be able to bring those down who really go to far. They won't come after you for sniffing some packets, for breaking into the switches, for pulling other such tricks, as long as you keep it civil. But Big Brother is watching you, ofcourse... Step over the line, and you'll see the Man with the Scissors cutting you off. And ain't nobody going to risk a permanent 100Mbit conection for a mere 6 dollars per month over a little hack attack. :)


      )O(
      the Gods have a sense of humour,

      --

      Never underestimate the power of stupidity
      To err is human, to moo bovine
  88. McDonald's coffee (WAY, WAY OT) by dillon_rinker · · Score: 3

    If I spill hot coffee on myself at McDonalds and burn my lap
    Two facts:
    1. The coffee was around 200 degrees.
    2. The lady was in the drive-through

    Two questions:
    1. Why would you serve coffee that is hot enough to cause third-degree burns?
    2. Where do you put your drink when you go through the drive through?

    I don't believe McDonald's was found guilty of any wrongdoing; rathre, they were found guilty of negligence - a legal term that means "They should have known better." McDonald's should have known that many (if not most) of their customers put their drinks in their laps, and that their coffee would cause third degree burns. Given those two undisputed facts, it is a statistical certainty that someone's crotch would get burned badly.

    Keep in mind also that all the woman wanted initially was for McDonald's to pay part of her medical bills. If they has said "We're so sorry" and written a small (to them) check, it would have been over on done with. Instead they said "You STUPID woman! You should have known better!" and promptly launched a propaganda campaign that has clearly had its intended effect, as evidenced by that note in your post. So the woman sued for millions and won.

    It's funny, as anti-corporate as the typical /.er seems to be, they sure buy the corporate propaganda, hook, line, and sinker.

    1. Re:McDonald's coffee (WAY, WAY OT) by Darchmare · · Score: 2

      ---
      1. The coffee was around 200 degrees.
      ---

      Yep.

      ---
      2. The lady was in the drive-through
      ---

      Yep. I assume she wasn't forced to go there, either.

      ---
      1. Why would you serve coffee that is hot enough to cause third-degree burns?
      ---

      Because, it would appear, most people don't seem to have a problem with it. People expect coffee to be hot, and if the market has decided that it doesn't mind (people still buy McDonald's coffee, right?), then what's the harm in that?

      ---
      2. Where do you put your drink when you go through the drive through?
      ---

      In a cup holder (which most halfway recent vehicles have - and can be bought 3rd party if desired).

      If it's a cold drink, I'll put it in my lap. If I spill it on myself and accidentally crash into a telephone poll, I'll pay the damages myself. I didn't have to put a drink in my lap, and neither did she. I didn't have to go through the drive- through, and neither did she.

      ---
      It's funny, as anti-corporate as the typical /.er seems to be, they sure buy the corporate propaganda, hook, line, and sinker.
      ---

      Oh yes, the "if you disagree with me, you must be a tool of The Man" argument. Give it a rest.

      Second, Slashdot is not a collective. We are capable of having diverse opinions.

      Third, some of us may not support the encroaching 'nanny culture' of this country where - instead of taking responsibility for your own actions - you shift the blame elsewhere and possibly make some cash in the process...

      - Jeff A. Campbell
      - VelociNews (http://www.velocinews.com)

      --

      - Jeff
    2. Re:McDonald's coffee (WAY, WAY OT) by DavidTC · · Score: 1
      Because, it would appear, most people don't seem to have a problem with it. People expect coffee to be hot, and if the market has decided that it doesn't mind (people still buy McDonald's coffee, right?), then what's the harm in that

      Are you aware how hot 200 degrees is? No one on earth wants coffee that hot. It would burn your lips. The whole reason they were doing it was they were assuming it was all 'carry to work' coffee or something stupid. And they don't serve it that hot anymore.

      -David T. C.

      --
      If corporations are people, aren't stockholders guilty of slavery?
    3. Re:McDonald's coffee (WAY, WAY OT) by jsm · · Score: 2
      Yep. I assume she wasn't forced to go there, either.

      No, but it's reasonable to assume that food they serve won't cause you physical damage. You wouldn't expect their meat-like burgers to contain discarded hypodermic needles, either. If the coffee was normal hot-coffee temperature, I'm sure she would have taken responsibility for it.

      This particular MacDonald's had gotten many complaints about their scalding hot coffee, and had refused to do anything about it.

      It's funny, as anti-corporate as the typical /.er seems to be, they sure buy the corporate propaganda, hook, line, and sinker.

      Oh yes, the "if you disagree with me, you must be a tool of The Man" argument. Give it a rest.

      No, he's just saying that you're buying into this corporate propaganda that MacDonald's spread so effectively. I used to believe this coffee lawsuit was ridiculous too, until I learned the details about it. (I do agree with you that Slashdot has diverse opinions.)

      Third, some of us may not support the encroaching 'nanny culture' of this country where - instead of taking responsibility for your own actions - you shift the blame elsewhere and possibly make some cash in the process...

      I agree that our lawsuit process is often abused. But sometimes there is no other recourse. What would you do if Mickey D's served you a hamburger with used needles in it? Would you still consider yourself "responsible for your own action" of buying and eating the burger? Or what if your employer or client withheld thousands of dollars of payment from you for no good reason? What would you do?

      Lawsuits in our culture have a bad reputation, often deserved. BUT be careful about condemning them as a whole, because one day you'll wish you had the option when someone screws you over. The source of most anti-lawsuit PR these days large corporations who want to screw over the public and not get sued-- think of HMO's, insurance companies, etc. They've manipulated the public's mistrust of lawyers (again, often deserved) into a general condemnation of lawsuits.

      Like it or not, lawsuits are a fundamental element of the US legal system; they're how our civil code (as opposed to criminal code) is enforced. A lawsuit should only be used as a last resort after all other negotiation fails, but without that option, many basic rights we take for granted would be effectively lost, because they would be unenforceable. I used to loudly condemn lawsuits and anyone who would bring them, until I had a couple of eye-opening experiences that made me realize the critical part they play in our legal system.

    4. Re:McDonald's coffee (WAY, WAY OT) by pheonix · · Score: 1

      And you buy Darwin-defying stupidity hook, line, and sinker. First, no evidence was presented that the coffee was exceptionally hot (exceptionally being relative to the normal temperature of coffee.)

      I put my coffee in the friggin CUP HOLDER nowhere near my crotch. I have too much respect for my penis to place it in hot fluids or near enough to them that it could suffer potential damage. If you buy coffee, and it's cold, you'd send it back for hot coffee. It stands to reason that, if you spill your hot coffee on your lap and burn yourself, you should probably order iced tea next time or something. It's people like you that allowed this ditzy chick to win her case and make money from her idiocy. Sad...very sad.
      -Jer

    5. Re:McDonald's coffee (WAY, WAY OT) by pheonix · · Score: 1
      You wouldn't expect their meat-like burgers to contain discarded hypodermic needles, either.

      If they were in the recipe, I would. Part of the composition of good coffee is heat. You make coffee by (essentially) mixing coffee flavored beans with HOT water. *gasp* Those bastards.

      When I lived with my parents and I, upon placing hot food in my mouth, gasping, spitting it back out, and commenting on it's temperature, used to impart this wisdom unto me:

      It's funny, putting it in the oven tends to do that to food.

      -Jer
    6. Re:McDonald's coffee (WAY, WAY OT) by LF11 · · Score: 1
      A lawsuit should only be used as a last resort after all other negotiation fails...

      Have you ever seen someone making a living from suing people?? Whenever the money runs low, acuse a doctor of injury, or have a car accident, or whatever, and sue for several thousand dollars.

      Fortunately, most people aren't like that. I've only heard of one, and I work in a chiropractor's office that has had a couple thousand people go through, and only one (that we know of) that was a lawsuit shark.

      ...I had a couple of eye-opening experiences that made me realize the critical part they play in our legal system.

      FWIW, I have been near the receiving end of person who claimed injury, and seemed to want to sue. She claimed that the chiropractor (call him Bob) injured her neck, and since she had her neck "fixed" by another chiropractor (call him Tom), wants Bob to pay the bill. If the Bob pays the bill, that's tantamount to agreeing to injure her--leaving him wide open for a big lawsuit. She has refused to come back in for an examination, and, when Bob called her to find out what went wrong, she became very abusive and nasty.

      Ouch.

      You are quite right that lawsuits are extremely important. It is a method for an unfortunate victim to extract restitution from an unwilling injurer. Unfortunately, lawsuits are increasingly abused, and the negativity associated with lawsuits is often well-deserved.

      Lawsuits have been abused, but the excuse of lawsuits has been abused even more. "Fear of litigation" is the excuse provided when a corporation takes steps to avoid litigation rather than avoid a very real and often dangerous problem.

      Lawsuits are good when a real problem has occured, and the injurer has refused to settle privately. Lawsuits are bad when either the injurer or the "victim" refuses to try settling the issue privately.

      -lf

  89. Cmon, by Anonymous Coward · · Score: 1

    Cmon, If you set your system up to "Attack" any hostile clients you are doing nothing more than creating a public DDOS server ! Lets say I spoof your IP and attack your system.. Whats gonna happen ??? Your gonna "Attack" your own system. Lets say I spoof Yahoo.. Who are you gonna attack ?? Me ? You have no CLUE what my real IP addy is.. Your gonna "Attack" Yahoo ! IMO - It's not a good idea to do automated reverse-attacks, but then again WTF do I know !

  90. If you're system was spoofed... by epcraig · · Score: 1

    If your system was compromised, your security is at fault. If, as a result of your system being compromised, you are subjected to a deflected denial of service attack, and your system buckles under the load, it's still ultimately your own poor security at fault. Now, when you take an ISP who is foolish enough to back their sysadmin to court, you could lose, because of your poor security. That said, no ISP should be likely to back the sysadmin opening up the ISP to a lawsuit.

    --
    Ed Craig "Who cares what you think?" George W. Bush, 4th of July 2001
  91. Smack Back by lemox · · Score: 1

    I seem to remember an article awhile back, that detailed sysadmins who track down attackers and crackers of their boxes, obtain their identities and locations if possible, and (If determined not to be minors) then commence to stopping by late at night with baseball bats. Sure, it's *really* illegal, but I bet it's even more effective ; ).

    --

    "We obviously need a new moderation category: (-1, Woo-fucking-hoo)" --Mr. AC

  92. Here's my personal policy. by Adam+Schumacher · · Score: 2

    Let's assume J. Random Crax0r is trying to get into my system, or DoS it, or jab at it with cyber-doggie-doo-on-a-stick, or whatever. What's my objetctive? The same thing if someone were attacking me IRL: neutralize the threat.

    I don't believe that "hacking back" is per se illegal... it all depends on the situation. For instance, if this particular er33t d00d is launching an attack on my computer, I should be perfectly justified in taking whatever actions are necessary to eliminate the threat. If this means simply blocking him out at the firewall, that's nifty-cool by me. On the other hand, if I can disable his computer remotely and stop the attack, that is acceptable as well, in my opinion. Disabling his computer and playing hopscotch with a magnet on his hard disk would not be acceptable, however.

    Let's say the attacker had hijacked another machine, and was using it to do his evil deeds. Well, my condolences to the user whose machine was hijacked, but that doesn't eliminate the threat to me now, does it? I still think I would be justified in disabling the attacking machine, if it were necessary to stop the attack. Say someone steals a car, and is trying to run down my car with it. Wouldn't be justified in disabling the other car, even though the attackers don't own it? Of course I would be, because it still poses a threat.

    Of course, as in real life, the less force that is used, the better. The important thing is to draw the distinction between neutralizing the threat, and seeking retaliation.

    Just my $0.03 CDN.

    - Adam Schumacher

  93. Situational summary �Proverb� is supported by ectropy777 · · Score: 1

    I agree with the proverb. I think most legal (proverbially blind) systems (judges, advocates, and prosecutors), being technological illiterates at this level, would have significant problem at determining who was the cracker (Defendant) and/or the crackie (Victim). The original victim may (good chance) end up in jail, paying for court/damages, loss of business/lively-hood, .... I would say we should all be responsible to ourselves.

    Also, the technological illiterate legal system police, lawyers, ... are very knowledgeable and qualified to advise on legally admissible/acceptable evidence in a court of law. Event logs, trip-wire reports, ... (all that other documentation/proof stuff that identifies a cracker) that are not properly handled, by system/network administrators, are a waste of time and (I believe) will not be allowed as evidence in most courts or a good cracker (maybe a white person from Mississippi maybe NOT) lawyer will successfully dispute the veracity of the evidence to the jury. Finally when the cracker goes free ... you should expect a liable case to be filed against you as the prosecutor apologizes for losing the case and explains how next time ....

    MORAL: The police, a lawyer, or judge may be your friend, but a legal system is an institution and has no friends; Therefor, keep your friend and avoid Institutional Problems.

    --
    Reality is a self-induced hallucination.
  94. Innocence by Datafage · · Score: 2
    I have read most of the comments on this article, and noticed a disturbing trend. A vast number of people have stated that "if your machine is insecure enough to be cracked, you deserve the retaliation." This is ludicrous. Since when are computers sold with the stipulation "You must secure this if you put it on-line, or be subject to retaliation for a crime you did not commit"? That would stop the computer revolution dead in its tracks. Remember, not everyone has the ability to secure a system when they start out, and cannot get the ability without buying a computer and learning how to secure it. The stance of many of the comments i have read are hypocritical beyond belief. There is no legal nor moral obligation to secure a computer just because it allows a bunch of zealots to lash back at anyone they percieve as attacking them.

    -----------------------

    --

    Nicotine free Amish .sig.

  95. Physical retaliation by Otter · · Score: 2

    There was a Slashdot article about a year and a half ago linking an IDG article about sysadmins going to crackers' homes and destroying their equipment or beating them up. Personally, I thought the article was either a fabrication or a joke being played on a gullible reporter.

    Can anyone find a link to the /. discussion?

  96. Huh? Wasn't ehippes just a frame farm? by Gray · · Score: 1

    As I recall, you loaded their URL and it opened a page with a million little frames loading the WTO website.. I can see no way the WTOs admin could have no anything to stop this at the packet level. If he set it up to redirect anyone coming with the ehippies in their refer header, that would do it.. If the ehippes had been bigger nerds, they could have probably defeated that easilly.

    "So we told our filtering software to redirect any packets coming from these machines back at the e-hippies Web server," says Brian Koref, senior security analyst at Conxion.

    What's up Brian?

  97. Black Ice by the_skyfire · · Score: 1

    All you need is to install some Black Ice ;-)
    Or any other color of ice for that matter(i.g. gray.)

    --

    --
    $ whoami
    nobody
  98. Retaliation! by john_uy · · Score: 1

    Let say someone launched a series of attacks against CNN. The attacker uses the IP address of Yahoo servers. CNN knowing the source IP will attack Yahoo. Yahoo on the other hand traced the IP address from CNN and launched a counteroffensive against CNN. Now, both Yahoo and CNN will be attacking one another. Of course, by that time, their own systems will be unavailable to regular net users. They will be losing much more than just filtering out the attacks and reporting it to the Feds.

    Ha! Let's see about that!

    ** Take note, assume that both of them "identifies" the source.

    --
    Live your life each day as if it was your last.
  99. Re:Moot - hacking back as self-defense. by BigBlockMopar · · Score: 1
    umm... putting it into the background (so you can ping almost instantaneously again). since your average ping takes 5 seconds, a loop that pings every 5 seconds isn't exactly very useful.

    Oops. Yeah. Don't flame me, I've been playing with Linux in a concerted way for only a couple of weeks now (and the entire last week has been spent trying to get DHCPCD to work).

    When you explained it to me, I remembered reading about the ampersand, but since I haven't used it yet, it's still not firmly in my mind. :)

    Now, a question, entirely for academic reasons, because I don't plan on doing this. Won't pinging using the ampersand eventually crash the computer?

    My thought process is this: You ping, and put the process into the background. You then loop back and ping again, putting that into the background. Since you're going to be looping faster than the ping completes, the number of processes will grow very quickly.

    I assume memory will be the limiting factor in the number of allowable processes, or CPU cycles will become so scarce that timing-dependant hardware support will start to fail? And how will the computer stop as it approaches that limit?

    (I'd fire it up and try it out against a Windows box on my home LAN, but my Linux box is at the office at the moment.)

    or heck, do this:
    loop:
    ping -f slashdot.org &
    goto loop.
    this'll screw everything up. heh.

    For the same reason that I can't try the above on my home LAN, I'm also unable to see the man page for ping... what's the f switch for?

    Jeez. Learning Linux is being great for reminding me why I shouldn't take my computer skills for granted.

    --
    Fire and Meat. Yummy.
  100. 'Hacking' is a mis-used term by Zeus_ · · Score: 1

    I'm sure that any one with 1/2 a clue that has posted here reasises this. The media in general (yes, CNN, this includes you) has replaced the term 'cracker' with 'hacker'.
    In the true sense, a hacker is some one who 'hacks' software to make improvments or make it do extra stuff.

    Apart from that, 'hacking (cracking) back' is plain stupid. As has already been said, it can start a chain reaction and cause havoc.

    If you use Port Sentry or something with the ability to perform an action apon detection, the best thing you can do is log the time, date and IP address where it originated, and contact the ISP and the authorities. You could go one step further, and write a script for port sentry to execute, that would, based ont the IP address, find the ISP, and automatically send off an e-mail to webmaster( or root or whatever)@${ISP}
    which would say something like "One of your users has started a portscan against" me etc etc etc...

    Use your imagination. There are far better things to do than to launch an attack back at them. Isn't the potential of getting the little 'script kiddie' arrested far more satisfying? I know i would rather have the little bastard in jail than still out there, cracking other people's machines.

  101. Re:Moot - hacking back as self-defense. by LF11 · · Score: 1

    "-f Flood ping. Outputs packets as fast as they come back or one hundred times per second, whichever is more. For every ECHO_REQUEST sent a period ``.'' is printed, while for every ECHO_REPLY received a backspace is printed. This provides a rapid display of how many packets are being dropped. Only the super-user may use this option. This can be very hard on a network and should be used with caution."

    This is cool to run on a local LAN. It's interesting to see how many packets can be dropped! Just kindly refrain from running it outside your local net!

  102. Re:Moot - hacking back as self-defense. by BigBlockMopar · · Score: 1
    "-f Flood ping. Outputs packets as fast as they come back or one hundred times per second, whichever is more.

    Wow. That's lovely! I can't wait to try it across my home LAN.

    This is cool to run on a local LAN. It's interesting to see how many packets can be dropped! Just kindly refrain from running it outside your local net!

    Yeah, I value my freedom and the lack of court orders telling me not to use computers. It'll be tempting to try it on the Internet, just like it's tempting to drive as fast as my vehicle will go (6.6L (400CID) V8-powered 1976 Dodge Ram). But for the simpler joys of being able to pursue life and liberty, I'll avoid doing it except under controlled and legal conditions.

    [BigBlockMopar is sitting beside his Linux box at the moment and starts reading the MAN pages with a renewed interest.]

    Thanks!

    --
    Fire and Meat. Yummy.
  103. Re:But can't we get the script kiddies? by NYC · · Score: 1

    Do we really need this?
    --weenie NT4 user: bite me!

    --
    --weenie NT4 user: bite me!
    "Computers are nothing but a perfect illusion of order" -- Iggy Pop