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Microsoft Security Intelligence
2 entries found.
Updated on May 14, 2013

Win32/FakeDef is a family of rogues that displays fake warnings of "malicious programs and viruses", and tells you that they need to pay money to register the software to remove these non-existent threats.

FakeDef uses a number of different aliases, depending on what operating system you are using; below is a list of the names we have observed in the wild:

  • Vista Defender
  • Win Defender
  • Win Server Defender
  • Win7 Defender
  • XP Defender
Alert level: severe
Updated on Dec 20, 2012
Alert level: severe