According to Arstechnica and I’ll quote:

[ad#ad2-left]Win32/FakeSecSen has gone by various names, including Micro Antivirus 2009, MS Antivirus, Spyware Preventer, Vista Antivirus 2008, Advanced Antivirus, System Antivirus 2008, Ultimate Antivirus 2008, Windows Antivirus, XPert Antivirus, Power Antivirus, and Ultra Antivirus 2009. Furthermore, it is skinnable, so each of these variants has a different GUI, although the basic functionality is the same: bother users with warnings of malware until they pay up.

The Microsoft Malware Protection Center recently released some data on how the removal tool performed this month: FakeSecSen was removed from 994,061 machines. That number isn’t the highest Microsoft has recorded before, and the number of removals depends on which malware Microsoft adds each month and how widespread it is.

[via Arstechnica]

This seemed to of happened this month with the usual Windows update.  If you haven’t updated your system just yet you should.   This troublesome fake virus seems to have been killed  from several systems.  This could effectively make it harder for these guys who ever designed this program to make money.  I hope microsoft does even more virus removals in next month.  If you still want to try to get rid of these viruses don’t forget to check out my tips on Virus removal.