[Hellfighter]

Getting rid of the virus will be difficult. Both Fortinet's Lovet and McAfee's Marcus said it is a server side polymorphic virus, which means it tweaks itself automatically every five minutes or so. This makes it hard to combat because it offers a new signature every time it changes and antivirus packages can only work against malware whose signature they recognize.

"It works like a mass mailer e-mail worm in some ways, infecting the machine and using the user's friends list to automatically send out infected copies," Marcus said. "Some of my own friends have been hit by Koobface."

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i know we have some facebook members here to be carefull