Facebook Anti-Virus Marketplace - Free
The social networking giant, Facebook announced its partnership with a number of security vendors to protect its users from spam and malicious content.
Facebook teams up with Microsoft, McAfee, TrendMicro, Sophos, and Symantec and launched the Antivirus Marketplace where facebook users can download Antivirus softwares for free.

Download
http://on.fb.me/FBAVMarketplace