Make sure your system is up to date and has the latest protections in place.

1. AVG anti-virus: 04/12/09
2. Avast: 04/10/09
3. Norton anti-virus: 04/08/09
4. McAfee anti-virus: 04/08/09
5. Lavasoft Ad-Aware: 04/09/09
6. Spybot Search and Destroy: 04/08/09
7. Microsoft Windows Defender: 04/08/09
8. Nod32: 04/10/09

Updates as of April 12, 2009 6:00am CDT.