Facebook conducted a vigorous scanning of user profiles on Thursday to identify and shutdown those which were found identical and were created for the purpose of spreading malware.A number of AVG Antivirus users reported that AVG's link scanning service detected a lot of profiles with identical data but different names. These profiles contained a home video which displayed a fake antivirus alert when users clicked on it. The main purpose of these profile creators was to trick people into paying for bogus security software that they didn't need as well as to hijack Credit Card information and leave spyware on users' machines.
Facebook is looking into how these accounts were created and it thinks that it's very likely that the sign-up process was manual, or that the person behind the attack farmed out the Captchas to be solved by humans for a price.
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