Archive for the 'Viruses' Category

Chinese CNO anyone?

While I’ve been sitting at home, sick for the last few days, I’ve been trying to keep my mind at least somewhat sharp by watching some light videos here and there. The usual stuff, some TED, some 30 Rock, and I came across this gem I thought many people on this list might be interested in:

Crouching Powerpoint, Hidden Trojan: An analysis of targeted attacks from 2005 to 2007
Presented by Maarten Van Horenbeeck of the SANS ISC at the 24th Chaos Communication Congress
http://events.ccc.de/congress/2007/Fahrplan/events/2189.en.html

See the links at the bottom for presentation materials including a PDF, video, and analysis of actual targeted exploits. I highly recommend the video, the torrent was extremely fast.

Enjoy :-)

Detecting Botnet Membership

More and more often we hear about botnets being responsible for a larger piece of Internet crime today. Botnets are complex systems and there are many different approaches to combating the problem. I decided to take a look at some of the more recent techniques to discover bot malware infection from network traffic. I came across two particularly interesting methods of identifying infected machines. One is to look at the most often used command and control technique - IRC channels - and try to determine ‘evil’ channels which provide commands for zombie machines. Another idea is to look for DNS Black List lookups, which may be performed by bots to test that an IP address is not listed before using it to send spam. Attached is a short presentation I gave for the ISIS computer lab.

Botnet Membership Detection within the Network