Wednesday, August 29, 2007

Storm Worm's use of Dropped Domains

The daily updated Bleedingthreats.org's Rules to block Storm worm DNS and C&C keeps growing at a significant speed, and with the group behind Storm Worm constantly changing the social engineering tactics -- but continuing to exploit already patched vulnerabilities in case the user doesn't self infect herself -- anti virus vendors are literally crunching out new signatures for yet another Storm Worm variant. Reactive response is a daily reality, however, proactive response such as making sure your customers cannot have their browsers automatically exploited even if they follow Storm Worm's IP links, is far more pragmatic, and the results can be easily evaluated while the mass mailing campaign is still active online. Here's an interesting list especially the fact that pretty much all of these domains were purchased as "dropped" ones, and are again part of the BYDLOSHKA campaign with a static domain.com/ind.php structure :

tushove.com; tibeam.com; kqfloat.com; snbane.com; yxbegan.com; snlilac.com; qavoter.com; ptowl.com; wxtaste.com; eqcorn.com; ltbrew.com; bnably.com; fncarp.com

The obfuscated javascript exploiting the browser vulnerabilities still includes offensive language against an anti virus vendor. Moreover, in case you remember the second Storm Worm wave had a very creative feature, namely to automatically inject a malicious URL in a forum or blog post, right after the infected party has authenticated herself in order for the malware to not have to figure out how to bypass the authentication. As it looks like, the current campaign has also hit Blogger and many other forums as well.

DIY Phishing Kits

In times when socially oriented bureaucrats are prompting such popular projects as the KisMAC and the Default Password List to seek hosting in a foreign country, the German scene seems to be very active with yet another DIY phishing kit released in the wild which I'll dicuss in this post, following the first rather primitive one I came across to a while ago. As we've seen with a previous phishing kit, and the infamous Rock Phish, malicious economies of scale in terms of efficiently generating fake pages to be forwarded to a central logging location are the second most important goal of this trend. What's the first? It's noise generation compared to the common wisdom that such tools are supposed to be exclusive and private. Talking about the economics of phishing, with the already a commodity scam pages available at the phishers' disposal, fast-flux hosting of the pages and maintaining their "online lifetime", thus playing a cat and mouse game with researchers and vendors shutting them down, is perhaps the next stage in further developing the phishing ecosystem.

File size: 5844992 bytes
MD5: ae3a3cbb873c69843455c46ad6e62f40
SHA1: 7606b3cccbb3cccb95bbe32b688e350d42aeffc5

Related posts:
Pharming Attacks Through DNS Cache Poisoning
DIY Pharming Tools