The Koobface worm first appeared in June, but now it’s back in greater strength, targeting social networking users with PCs – those with Macs or running Linux are not affected. The Guardian reports that security company F-Secure says Koobface is running on Facebook, Bebo, MySpace, Friendster, Myyearbook and Blackplanet.
So how does it work? Well, once one person is infected, the malware starts sending out messages to people on the friends’ list saying things like "Are you sure this is your first acting experience?", "is it u there?", "impressive. i’m sure it’s you on this video", "How can anyone get so busted by a spy camera?" and "You’re the whole show! i’m admired with you".
