Code W32/Koobface.worm
Attacking Facebook, MySpace and other’s Social Community

Worm Koobface using social networks as a method to spread malware

So that’s makes this worm targetting facebook community because Facebook alone has more than 175 million users, which makes it an attractive target.

This worm using fake codec Trojans linked to a saucy video to induce the user to install the malware, because many computer users have been conditioned not to open an attachment from an e-mail.

The Koobface it can be dropped by other malware and downloaded unknowingly by a user when visiting malicious Web sites when this malware your execute, it searches for cookies created by online social networks.

Indeed, Facebook has seen five different security threats in the past week. According to Trend Micro, four new hoax applications are attempting to trick members into divulging their usernames and passwords. And a new variant of the Koobface worm is running wild on the site, installing malware on the computers of victims who click on a link to a fake YouTube video.

To protect yourself running up-to-date antivirus software, restricting which Facebook applications they install, thinking twice before clicking on links from friends and never, never installing a codec from some random Web site in the hopes of catching some celebrity in a compromised situation.

Taken from many source from Internet.