Hackers Buying IPv4 Blocks To Evade Detection
Trailrunner7 writes "The number of IP addresses required for large scale botnets to operate effectively can be considerable, and finding large IP blocks to use for them can be difficult. If the botnet operators do find them, the IP addresses often are blacklisted quickly by reputation systems and are then useless for the attackers. Now, in one effort to get around these systems, some attackers are taking advantage of the lack of IPv4 space by either purchasing or renting blocks of IP space with good reputations that have been built up over the course of several years. A number of legitimate trading and auction sites appeared as the IPv4 space became scarcer, and the attackers have gotten involved as well, getting their hands on known good IP blocks and using them for C&C or hosting malware."
>legitimate trading and auction sites
Well, that's got to wreak havoc on routing tables.
FTFA: "The bad guys can buy or rent these as well, getting inside known good IP blocks so that the reputation systems don't blacklist them as quickly." Criminals establish "safe houses" in nice neighborhoods. Film at eleven.
Why would hackers still be playing Command and Conquer?
It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
I think you mean criminals.
Reputation isn't something that takes ages to destroy. Do shitty things, get blacklisted. Also, IP space that hasn't been used for mail servers, porn web sites or dialup isn't cheap.
If somebody buys IP space, then there is a money trail and other identifiers.
How could criminals purchase blocks outright?
172.16.x.x. Used it in my last startup, which unfortunately went under so that address is now available for a below-market price.
I call BS. Hackers don't rent or buy IP addresses for botnets. The bots run on machines each of which has an IP address already. And when they do need IP addresses, they steal them: find an address assignment not currently routed on the Internet and forge papers they present to the ISP claiming to be the actual registrant.
There are a number of protections in place at ARIN and the other Internet Registries which do a reasonably good job preventing hackers from taking actual "ownership" of blocks of IP addresses.
While there is such a thing as a "legitimate trading and auction sites," there are also a lot of snake oil salesman out there right now claiming legitimacy. Here's a hint: the legitimate ones don't cater to the hacker crowd because they know perfectly well they can't effect a registry transfer without meeting the registry's criteria for "legitimate need."
Moderating "-1, Disagree" is simple censorship. Have the guts to post your opinion.
It should be justifiable homicide to shoot and kill spammers, phishers, malware authors, and those asshats attempting dictionary attacks against a bunch of pop3 accounts looking for a new spam vector. Any nation that does not enact such a law should be labeled a rogue threat to humanity and be nuked until there is nothing left to nuke.
Shouldn't we instead be referring to "botnet operators" or some such? I'm not making the "hacker" versus "cracker" argument, since language and words are dynamic - but even if we just use hackers in the pejorative sense, we're talking about a much larger group than just the subset who run botnets.
#DeleteChrome
from getting IP space from a datacenter and using it until it gets a bad reputation.
And besides, if you have a block of IPs just to cycle it between botnets and spammers, just because it changes hands doesn't clean the block's reputation. So these blocks will also get blacklisted in short order.
As the summary, these spammers (to use the appropriate term; botnets aren't much use for "hacking") are basically reverse Midas to IP blocks: Whatever they touch is blacklisted. All that this means is that non-blacklisted address space becomes scarcer to the point where either these assholes can't afford it, or ICANN introduces new rules to seize address space that is abused (which would be a worrying precedent on the censorship & net neutrality front), or everyone switches to IPv6.
Frankly, I wouldn't mind something that speeds that along. It will never reach wide adoption without pressure.
The article says IP blocks are "blacklisted quickly by reputation systems". So why wouldn't these IP addresses they buy be "blacklisted quickly by reputation systems" as well? How are "good reputation" IP blocks any different? Every mom and pop cable or DSL model had an IP address that previously had a good reputation until a botnet infected it. How this any different then hackers signing up for any ISP service?
Trying to sell a non-internet-routable address block (in 172.16.x.x., same as 10.x.x.x or 192.168.x.x - not internet routeable)?
APK
P.S.=> I assume you're just joking though ( & trying to use your "geek/nerd humor" here, right?)... apk
I'd like to tack a rider onto your legislation, however:
It should also be justifiable homicide to shoot every last "Herpaderpimsekyoor" Linux lunatic who installs CMS software and never goddamned updates it.
I understand the reason that you generally don't want something living in a docroot to go through yum or apt-get, but for fuck's sake people, I'm tired of hearing about $1000 Walmart gift cards, invitations to join the Women's Professional Network and discount Cialis.
Which reminds me, what ever happened to Rolex spam? I haven't seen offers for real imitation genuine fake Rolexes in forever now.
I think of all ads as spam. It's useless junk-information that i DIDNT ask for.
So also nuke Google, you have my permission. Though aim carefully, dont hit
the search-engine plz.
This should read "Spammers Buying IPv4 Blocks To Evade Detection"
tsk, tsk, Slashdot.
But but but but I thought IPv4 was completely used up and no more could be had because everyone bought them all and no one had any more for public purchase!
Oh right, we were lied to yet again about the sky falling with ipv4 to get us to switch to the horrible clusterfuck of ipv6. Fortunately it didn't work.
I have one question. Can IPSEC in any way prevent Botnets from doing their damage? If that's the case, then moving to IPv6 would indeed be a solution, since there is no NAT involved. Incidentally, to all those who claim that NAT provides security, this is clear evidence that it doesn't, or else, Botnets wouldn't be as successful as they are.
Call me a spellfag, but it's BLOCS, not blocks.