Malware Destructor 2011 is a rogue anti-malware application. This program acts like a legitimate security program, but displays fake alerts and warning messages to scare users. Pushing them to buy a license. It is a clone of Antimalware Doctor.
Rogue name Malware Destructor (Malware Destructor 2009) was already used in the past by another rogue familly:
If your computer is infected with Malware Destructor 2011 use MBAM to remove the infection.