January '12 MSRT: Win32/Sefnit

The January 2012 edition of the Microsoft Malicious Software Removal Tool (MSRT) includes detection and removal of the Win32/Sefnit family of trojans. This trojan family moderates and redirects web browser search engine results for Bing, Yahoo! and Google. The earliest reported variant in this family can be traced back to August 2010. The installation mechanism…

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