Last month Microsoft claimed it purged programs called "Advanced Antivirus," "Ultimate Antivirus 2008," and "XPert Antivirus" from almost a million PCs. This month, Microsoft targeted the Win32/FakeXPA family (including Win32/Yektel and Win32/FakeXPA) which include fake security software called "Antivirus XP," "AntivirusXP 2008," and "Antivirus 2009." (Source: technet.com)
If your system has any of the above mentioned rogue programs, you should scan your PC with MSRT from Microsoft immediately.
Other useful resources and tools to remove the rogue Antivirus 2009 malware: