Archive for April, 2006

Fingerprinting Botnet C&C Servers

April 13, 2006 by Jose Nazario

One of the things we’re doing in our work, and that will likely appear in our VBCon 06 paper, is understanding the distribution of OS’ per botnet command and control (c&c) server. I’ve been using a few tools to do this (it is in bulk…thousands of botnet servers; scripting “nmap -O” is the last resort), [...]

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Botnet Tracking, Minute by Minute

April 12, 2006 by Jose Nazario

We’ve been tracking botnets for some time now; it’s a great way to directly monitor malicious activity. The graph above relates to a botnet I’m currently tracking. It’s seeing a lot of churn – something on the order of thousands of new IP addresses every day. But, that’s not quite accurate; it’s hosts leave and [...]

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Security Product Corewars: When Robots Attack

April 10, 2006 by Dug Song

Q: What do you get when you cross PROTOS, Metasploit, SPIKE, tcpreplay, and ISIC, and then hardware-accelerate it? A: A slew of recently-launched “security analyzer” products — boxes designed to break just about anything on the network (including other security devices) by being the worst, most aggressive TCP/IP conversationalists imaginable. In an industry wholly pre-occupied [...]

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