Here are a few great places to get a free online virus scan:
BitDefender’s free online virus scan - it rocks!
Trend Micro HouseCall - Free Online Virus and Spyware Scan - Trend ...
HouseCall is a free online virus scanner offered by Trend Micro, which checks whether a computer has been infected by viruses, spyware, or other malware.
Free Virus Scan - Kaspersky Lab
Kaspersky Lab's free virus scan provides a free online scan of your computer for spyware and viruses.
Also check out our suggestions for antivirus software!