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

1. AVG anti-virus: 11/30/08
2. Avast: 11/30/08
3. Norton anti-virus: 11/26/08
4. McAfee anti-virus: 11/26/08
5. Lavasoft Ad-Aware: 11/28/08
6. Spybot Search and Destroy: 11/26/08
7. Microsoft Windows Defender: 11/26/08
8. Nod32: 11/26/08

Updates as of November 30.  2008 6:00am CDT.