Webroot MyDoom Remover is a free tool that detects and removes the MyDoom Worm

Webroot MyDoom Remover is a free utility that can quickly scan your system to detect and remove the MyDoom worm, also known as aka MyDoom/W32.Novarg.A@mm and WORM_MIMAIL.R. This lightweight, downloadable application runs without installing any components on your system and passes results of the scan to a Webroot hosted web page. For comprehensive results, including recommendations for preventing future infections, the tool should be run with an open Internet connection. The MyDoom/W32.Novarg.A@MM virus is a worm that propagates through email. It arrives in your inbox with a wide variety of subject lines and body text. The email includes an exe file that is the virus itself. Once an infection occurs, MyDoom scans a hard drive for email addresses and sends itself to all that it finds.