Goggle has a little-used feature that lets you search for arbitrary binary strings; a security company has used this to find thousands of sites that distribute malicious software to visitors:
By taking advantage Google's binary search capability, Websense has created new software tools that can sniff out malware using the popular search engine. Websense researchers Googled for strings that were used in known malware like the Bagel and Mytob worms and have uncovered about 2,000 malicious Web sites over the past month, according to Dan Hubbard, senior director of security and research with Websense.
(via /.)
