Flashback Malware: New Variant Changes Twitter Hashtags
We recently reported on how the Flashback malware was using Twitter as a command and control center, using a correspondence table between dates and four-letter strings, combining them to make twelve-letter strings. The malware sends HTTP requests to Twitter ever hour, searching for these hashtags, and only those tweets posted since the last time it [...]
http://blog.intego.com/flashback-malware-new-variant-changes-twitter-hashtags/
