Here is a list of the online virus scanners free to use. They come in handy when your installed antivirus isn't able to detect an infection, and there isn't a specific cleaning tool available to clean off the virus. This list is in no particular order. Some scanners will require you to use Internet Explorer and install an ActiveX control, and others just upload a single file to scan.

Trend Micro Housecall

eTrust Antivirus Web Scanner

BitDefender Online Scan

F-Secure Online Scanner

Kaspersky Online Virus Scanner

VirusTotal File Scanner

Last Updated Sunday, October 31, 2010