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Klez, The Virus that Keeps on Giving

kylus writes "Wired is running a story about the continued escapades of the Klez virus, and the damage--both to finances and reputations--that it is leaving behind. Between emails from a dead friend and porno spam appearing to be sent from a priest, I think "Don't Believe the 'From' Line" is the correct lesson." God bless microsoft email viruses. I'm on a modem for a few weeks and downloading countless megs of mail viruses is extremely frusterating. Course I'm still getting sircams.

30 of 683 comments (clear)

  1. Scripts by Anonymous Coward · · Score: 3, Insightful

    Hrm, I can't think of any practical uses of scripting in emails anyway. Can anyone help me out?

    1. Re:Scripts by grahamsz · · Score: 4, Insightful

      So targetted marketing campaigns can track which users look at what and for how long.

    2. Re:Scripts by phyxeld · · Score: 3, Insightful

      Hrm, I can't think of any practical uses of scripting in emails anyway. Can anyone help me out?

      Microsoft hasn't gotten rid of scripting in Outlook because it's required for nasty email viruses like Klez to spread, which in turn allows microsoft to step in and "save the day", which leads to news headlines like "Microsoft releases latest Outlook security patch", "Microsoft patch to block "Love"-like viruses", and, my favorite, "Microsoft to secure e-mail".

      To the average schmoe who doesn't realize these viruses are only possible because of microsoft's stupidity, it would appear that microsoft is valiantly fighting the inevitable battle against nasty virus-writing hackers.

      </conspiracy theory>

      Or maybe they're really just so stupid that they think scripting in emails is such a great feature it's worth putting up with all this bullshit. If you ask me, HTML email isn't even needed. Plain ol' text usually works fine for me; most of the HTML emails I get are spam and the few that aren't usually have a text/plain version as well.

      Notice that the last article I linked to sounds like a pretty solid fix: Users will be suposedly prompted before any emailed scripts do anything, and given a yes/no dialog to stop them from doing anything bad. Seems like a good idea. Unfortunetly, that article is dated June 2000, so clearly it didn't work out... Anyone know what the deal with that is?

      --
      __
      Choose mnemonic identifiers. If you can't remember what mnemonic means, you've got a problem. - Larry Wall
    3. Re:Scripts by sir99 · · Score: 2, Insightful
      Notice that the last article I linked to sounds like a pretty solid fix: Users will be suposedly prompted before any emailed scripts do anything, and given a yes/no dialog to stop them from doing anything bad.


      I'm not so sure about that. Some people I know blindly click "OK" on any dialog box that pops up without so much as glancing at it. That's also the reason Gator manages to get installed on computers.

      --
      The ocean parts and the meteors come down
      Laid out in amber, baby.
  2. Worse than porn spam from a priest... by brooks_talley · · Score: 4, Insightful

    Try operating a legit, non-spamming adult site that's worked hard for years to get a decent reputation, only to have klez emails that appear to come from your customer support email address.

    People are going to believe a priest when it's explained that it was a virus; nobody is going to believe a legit company that's operating in an industry where so much spam originates.

    Argh.
    -b

    1. Re:Worse than porn spam from a priest... by HiThere · · Score: 3, Insightful

      Why are you going to believe the priest was innocent?

      --

      I think we've pushed this "anyone can grow up to be president" thing too far.
  3. The average user? by marekk · · Score: 5, Insightful
    From the Wired article:
    "Anytime you have a virus that is not easily identifiable visually, it tends to linger," Rod Fewster, Australian representative for antiviral application NOD32, said. "SirCam and Klez both vary the subject lines of the e-mails they send, which makes it hard for the average user to spot."
    Unfortunately, I'm sure the average user can't spot any e-mail viruses, let alone ones that change their subject line. While Outlook/Outlook Express greatly facilitates the spread of these viruses, a large part of the problem lies in the fact that too many people click on attachments and/or don't run proactive AntiVirus software on their system.
  4. Re:Using open relays to boot by trix_e · · Score: 4, Insightful
    Last thing is that I hate the Corporates assigning a value on a virus. 10 billion done by Melissa. OK. Show me the physical harm done to your computers.


    it's not the *physical* harm... it's the freaking man-years of time that is wasted. IT departments are strapped enough as it is, but then lump on top of that all of the time spent chasing crap like this down, and it *is* a strain on resources (bandwidth, server drive space, and the valuable attention it takes to diagnose and resolve a particular problem). The cost is real. Whether it's $10B or not, I have no idea, but it certainly isn't trivial.

    --
    No man is an island, but Gary is a city in Indiana.
  5. Re: Really, how common are these things? by ttyp0 · · Score: 5, Insightful

    Quite common. If you just sit and post on slashdot all day, then no, you probably aren't much of a target for virii. However, I run 3 large websites, active on 10 mailing lists and send close to 50 emails a day. My email address is spread all over the Internet like a bad case of herpes. In return I get close to 30 - 40 infected emails a day. That was before I installed a virus scanner on my mail server.

  6. Re:Pornographic attachments from priests? by xZAQx · · Score: 5, Insightful

    Pretty funny.

    Keep in mind the hundreds of priests now being wrongfully prosecuted due to a stererotype that is spreading like wildfire. Bear in mind how it is ruining their lives.

    I love how on slashdot, insults and slander made about religion are modded as funny, yet if I were to say, "Porn from black people? What was it, pictures of fried chicken?" I'd be modded as a troll. It's all ignorance; it's all slander; it's all hatred. Stop modding self-righteous science-worshipping trolls like the parent up.

    Although, I'm sure that now I'll be modded as a troll. Whatever.

    Dare to think for yourself.

    --

    We dance to all the wrong songs.
    --Refused.
  7. Re:Mailing-lists by gwernol · · Score: 4, Insightful

    Thanks a lot to Microsoft for being responsible of the most annoying viruses so far.

    Isn't that a bit like holding Napster responsible for all theft of music that happens on its systems, or the manufacturers of CD-RW drives for all software piracy done on their machines? That's the argument used by the supporters of DCMA and other nasty bills that outlaw fair use.

    The scum-wad(s) who wrote the virus are responsible for its actions. Microsoft should do a better job of writing secure software, but the primary responsibility lies with the virus writer. Any responsibility born by Microsoft is equalled by the responsibility born by those users who don't apply security updates and don't run up-to-date firewall and virus checking software.

    --
    Sailing over the event horizon
  8. The real solution by pmz · · Score: 4, Insightful

    is for the World to begin the arduous and expensive task of removing Microsoft software from their computers.

    The first step is to eliminate Outlook for e-mail. There are other options, even Emacs, that really aren't too user unfriendly.

    The second step is to eliminate Office for shared documents. There are other options, perhaps Open Office, that will be less prone to viruses and will be more maintainable over time.

    The third step is to begin evaluating other operating systems besides Windows. This is harder, because it will be difficult to replace all the software that was useful in Windows. Over time, however, a fairly comprehensive list can be developed, and a plan can be made to make the switch to a non-Windows OS.

    The fourth step is to take the plunge and dump Windows entirely. This may be the hardest step, because this is where the most learning needs to take place. But it is just a matter of time before users adapt to the new environment.

    This is what I have been doing at home and know it isn't easy to make a full transition. However, I have found adequate replacements for nearly everything and am pretty satisfied with the results.

    This doesn't have to be an all-Free-all-the-time solution, either, because there really is a way to mix open and closed software to meet your needs. It just takes research, time, and patience to find that Microsoft really doesn't rule the world at all--they just want us to think they do.

  9. I'm impressed. by EvilNight · · Score: 5, Insightful

    The person who wrote this spent some time thinking of the way to do the most damage. This virus nails you to the wall the instant it infects someone who just has your email address. That was some vicious thinking. The problems caused by this virus actually extend into social engineering. Pure genius.

    Makes you wonder what else they'll come up with...

    Maybe someday we'll have security, and patch this sort of thing...

    --
    Hell is being intelligent in a world full of idiots.
  10. Another argument for CONFIRMING list subscribe by Seth+Finkelstein · · Score: 5, Insightful
    Quoth the article:

    People signing up for newsletters and mailing lists that they never subscribed to has been a major source of frustration for both users and the list owners.

    If Klez happens to send an e-mail "from" a user to an e-mail list's automatic subscribe address, the list software assumes the e-mail is a valid subscription request and begins sending mail to the user.

    This is another reason why all lists should confirm subscriptions. I'm seeing the Klem-virus beating on my own mailing list, and I'm very glad I spent the time to get the software to do confirmations of subscriptions.

    Sig: What Happened To The Censorware Project (censorware.org)

  11. Re:Mailing-lists by shades66 · · Score: 2, Insightful

    >Microsoft should do a better job of writing secure software

    Exactly and that is why everyone makes comments because it is always (well 9 out of 10 at a guess) a microsoft feature/bug that allows the virus's to spread like wildfire.

    Mark.

    --
    ---- There are 10 types of people in the world. Those that understand binary and those that don't
  12. Don't flame MS quite so hard for this one... by ArticulateArne · · Score: 3, Insightful

    Ok, I know that many worms have been propagated through MS LookOut, etc, through the years, and I've been on the sysadmin end of shutting them down and cleaning them up. But, you can't blame MS quite so much for this one. For one thing, the vulnerability has been patched for an entire year, so anybody who is still vulnerable isn't really trying at all to stop it. For another thing, the security settings in Outlook XP (and I think 2K, IIRC) are much stricter by default. I've actually opened these klez emails, but Outlook won't display them. It says something about having HTML that it won't display, or something to that effect. It also won't do .exes, .mdbs, etc without a registry modification, which has annoyed me on occasion, but is doubtless much safer than the previous way of doing things.

    Let the flames begin.

  13. Fool! use IMAP by benploni · · Score: 5, Insightful

    IMAP would allow to get all the email, minus the atachments. You can pick which attachments you want. People, read the IMAP spec. It offers so much that ppl dont take advantage of.

  14. Re:Mailing-lists by tswinzig · · Score: 3, Insightful

    Isn't that a bit like holding Napster responsible for all theft of music that happens on its systems, or the manufacturers of CD-RW drives for all software piracy done on their machines? That's the argument used by the supporters of DCMA and other nasty bills that outlaw fair use.

    If Microsoft hadn't enabled braindead default settings in Outlook/Outlook Express, things wouldn't be as bad as they are. Most of these viruses exploit holes in versions of Outlook/OE that are very popular. Sure, there are patches, but try getting people to install them. Then they have to reinstall Windows for some reason, they put OE or Outlook back on, and leave it unpatched.

    Microsoft will continue to get hammered over this until Outlook XP and subsequent versions reach critical mass, because those versions have some sane defaults (including not allowing any access to executable attachments finally!).

    --

    "And like that ... he's gone."
  15. obscure?? by www.sorehands.com · · Score: 3, Insightful
    Just because you don't see it in the news does not mean that it is obscure. How many times do you see in the news, "Your electricity will have no problems today?" How many people did you tell, "my car started and ran fine without a problem?"


    Many ATMs and cash registers run OS/2, but you don't hear about it because there is no problem.

  16. Nobody blames the actions of a few evil preists. by Unknown+Poltroon · · Score: 2, Insightful

    What they are blaming is that the entire church as an organazion tried to cover this up in a way that perpetuated the problem. The organization deserves all the ridicule and disgust theyre getting for that.

    --
    All Troll + "offtopic" mods are meta moderated as "Unfair", because you abused the system.
  17. Re:Yet another reason by Anonymous Coward · · Score: 1, Insightful

    If was all used linux, it would only be a matter of time before linux viruses started appearing. Granted, they would be much less effective, and many prople wouldn't be bothered at all, but there will always be prople who dont update virus defs., use a firewall, etc.
    The vast majority of viruses are windows-based because thats what most of the world uses.

  18. Re:f-prot and perl solved my problems by ScoLgo · · Score: 4, Insightful

    After I got burned a few times by Norton coming out with an upgrade 2 hours AFTER I got infected, I stopped relying on it.

    This is the whole problem with anti-virus software. Your best defense is your brain, not relying on someone else to write a defense program for you.

    I have a novice friend who recently asked me about viruses. He runs Win98, IE5, OE5. I helped him with security settings and explained the significance of file extensions to him. Even my beginner buddy easily understood that having a secondary extension on an e-mail attachment is a red flag to not open that attachment. That knowledge, along with some logical security settings, (scripting host 'off', please), is your best defense against these viruses. My brother-in-law OTOH, opened a virus recently and is waiting for me to come over and clean it off for him. It's an 80-mile drive so I think I'll let him stew for a couple days. Hopefully, he's learned his lesson.

    Sidebar - One of the biggest complaints I have about the default Windows install is that it hides extensions of known file types. Who was the genius at Microsoft that made that decision?

    --
    "Michael, I did nothing. I did absolutely nothing - and it was everything that I thought it could be."
  19. Re:Mailing-lists by ewhac · · Score: 3, Insightful

    Isn't that a bit like holding Napster responsible for all theft of music that happens on its systems, or the manufacturers of CD-RW drives for all software piracy done on their machines?

    No, it's not.

    "Those who do not understand UNIX are doomed to reinvent it, poorly."
    -- Henry Spencer

    Computer science and computer security experts have been saying for years that Micros~1 hasn't got the first fscking clue when it comes to writing solid, reliable, secure code. This despite the fact that there have been several examples of, if not ideal solutions, good first approaches to the problem. Indeed, to create WinNT, Microsoft snarfed the VMS team from DEC, a bunch of guys who understood those principles.

    And yet, despite the mountains of examples both within and without the company, despite the millions of computers blue-screening every damned day, Microsoft willfully persists in making the same stupid mistakes.

    As is well-known, Word macro viruses were a big problem in years past. This was because Microsoft made a series of impossibly moronic decisions:

    • To incorporate a macro facility into Word directly (rather than as an external engine driven by IPC protocols, where access controls can be applied in a uniform manner),
    • To embed the macros into the Word documents directly, rather than as separate macro files (thus making it impossible for the user to distinguish between a normal document and an "active" one),
    • To set the default condition to run the macros automatically upon document loading, without informing the user,
    • To, by default, not inform the user that any of this idiocy was going on.

    Okay, fine, so Microsoft got bitten by their would-be cleverness, but they cleaned up their act, right? They learned their lesson, right?

    No. Not only did they refuse to acknowledge that they had fscked up royally, they went and deliberately committed the same errors again and again:

    • Not only does IE uncritically implement JavaScript, it also throws in Visual Basic scripting and ActiveX, all of which are turned on by default. This condition is identical to that which propogated the Word macro virus fiasco. Even their "secure" execution environments hasn't prevented hostile Web sites from hijacking the browser.
    • Outlook likewise, without user intervention, will extract and launch embedded content while simultaneously hiding it from the user. The damn thing doesn't even check to make sure the MIME type and the filename extension are consistent.

    There's a term for this kind of behavior: Willful negligence. Oh, you can point out that there are security update downloads. But you can't ignore the fact that, if Microsoft had followed basic security principles, if they had learned from their own history -- hell, if they'd even extended common courtesy to their users -- this sort of thing wouldn't have happened in the first place.

    This isn't an honest mistake. This is a pattern with over twenty years of history behind it.

    Any responsibility born by Microsoft is equalled by the responsibility born by those users who don't apply security updates and don't run up-to-date firewall and virus checking software.

    I agree that uneducated users are a big problem. But, especially with the advent of broadband connectivity, what Microsoft has effectively done is to give a loaded Uzi with the safety off to eight-year-olds, and then fail to train them in its use or even tell them where the safety lock is.

    Microsoft touts its products as turnkey, ready-to-go, fire-and-forget, no setup, no configuration, no need to learn computer-ese, just sit down and become productive immediately. This is misleading in the extreme. Training is required; proper configuration is required (because Microsoft keeps setting the defaults wrong). As such, I feel Microsoft bears a significant burden of responsibility for the havoc their software has wreaked on the Internet.

    Schwab

  20. Re:Save your bandwidth by leviramsey · · Score: 2, Insightful

    Uh, multiply the 6.3 minutes by 8. You're dividing 2 megabytes by 53 kilobits per second.

  21. This must be a great deal for spammers by Anonymous Coward · · Score: 1, Insightful

    I'll bet that anyone who's a spammer is harvesting all these *genuine* e-mail addresses that are floating around on the net because of this virus.

  22. Virus Payload Also EMails Random Documents by Anonymous Coward · · Score: 1, Insightful
    A linked article on the Wired site states:
    "...there was a new and "very interesting" feature included. Anti-viral experts said they'd yet to identify anything particularly interesting."
    What it does is email random documents on the infected machine or on mapped drives(!) as attachments to go along with the attached virus code. In a business environment where you have customers in your address book, it can be very embarassing to be sending internal mail, spreadsheets etc. to them. What makes it all the worst is that unless the email receiver clues you in to what was received, you have no idea what was sent.."

    I just spent the last two days fighting this virus in a 125 seat company. Although in the end only a half dozen boxes were infected, the impression end users got was that the virus was on everybodys computer.

    It was easy to find the infected computers once I realized that the "REPLY-TO" address in the header reflected the actual sender.

  23. The cost of viruses, worms, and spam by gujo-odori · · Score: 4, Insightful

    I'm a sysadmin at an ISP, and we have been filtering Klez inbound and outbound for 13 days, and the load basically hasn't tapered off at all. Since we started the Klez filter (thank you, Exim!) the number of bounces in our postmaster box doubled and show no real signs of slowing up.

    That is a lot of bounces because we also filter on SirCam (still see some of those everyday), use several RBLs, and have extensive local spam filters and reject lists, as well as optional spam filters for Korean-encoded and Chinese-encoded mail (just rolled them out and over 800 customers have started using them already).

    The cost of this is a lot of wasted bandwidth consumed by spam, worms, and viruses, in hardware (we run 4 MXes where two would otherwise suffice, because of the filtering load), and the countless hours we spend each week on defending our mail system and our customers from all this crap.

    Besides the usual suspects (MS for their security holes, users for their laxness on applying updates, and the virus writers themselves), I also have to blame a lot of adminstrators for this. Mail admins, listen up! You KNOW Klez is out there and you KNOW it's going through your systems. You probably have a ton of captive specimens of it. Start filtering it inbound and outbound. You're not only helping other admins to control this problem, you're helping yourself.

    And let's all be thankful that virus writers and spamware writers come from two camps that aren't likely to like each other, because if they got together and wrote a worm that silently propagated itself and turned Windows boxes into selectively open relays for use by the spammer/authors, that would be a real problem. The scary part is that it wouldn't be all that hard. The worms already have their own SMTP engines these days. The leap is small. Let's hope they don't make it, but let's think about how we're going to control it when they do.

    Line of defense number 1: ISPs - if you don't already block port 25 in/out from your dial pools (requiring your dial users to smarthost through your outbound SMTP or send through it directly), start NOW. The ass you save will be your own. If we all do this (my employer has done this for years) we will cut off spam.

  24. Remember the WTC? by Macrobat · · Score: 3, Insightful
    As a matter of fact, it's kind of hard for me to think of any recent major wars which were caused by religion.
    Ummm...remember that gaping hole where the World Trade Center used to be? It was caused by men who thought they were on a mission from God. We're at war because of them.

    And you don't remember any religious persecution going on during World War II? None? I dare say, without his anti-Semitic rhetoric, Hitler might never have come to power. And the Japanese believed in the divinity of their emperor, too--the word "kamikaze" means "divine wind."

    At least part of the Arab-Israeli conflict is religious in nature. You just don't see a lot of atheist suicide bombers. A lot of "ethnic cleansing" is done along religious lines as well.

    The expansion of European nations into the Americas was often justified under the aegis of "divine right."

    That's not to mention the religious rhetoric that's used to get men to go to war. Ever hear the song "Onward Christian Soldiers?"

    So the original poster might be a little bold about his statistics...but don't fool yourself into thinking religions have their hands clean, even today.

    --
    "Hardly used" will not fetch you a better price for your brain.
  25. Re:Pornographic attachments from priests? by Daengbo · · Score: 2, Insightful

    religion is the cause of 90% of all wars.

    I think what you mean to say is "Religion is used as a pretext to start 90% of all wars." It's really about selfish ambition. The Crusades were about land and loot, not christianity, and Osama uses islam to further his call. Kind of the same way some humanists use science to bring down hate upon people who are religious. The core texts of every major religion preach peace. Poeple, however, suck.
  26. Re:Mailing-lists by imroy · · Score: 2, Insightful

    Very well said Schwab. This is what I've been thinking and talking about recently. All these security problems with M$ software aren't simply little "oops, I forgot to check that variable"-level programmer errors. These are BIG design problems. Virus checkers are really a band-aid solution to a problem that needs serious attention.