MicroWorld has developed a Free eScan Anti-Virus Toolkit Utility, that will help you diagnose if your machine is infected by a virus. This tool also cleans your registry and other system areas of the damage that a virus might have done. The best part of eScan toolkit utility, is its ability to

A. Check running processes in memory.

B. Check illegal dialers running in memory and inform the user.

C. Inform users of any background (legal) sniffers or tools running in memory.

Download it here