McAfee AVERT Stinger
Stinger is a stand-alone utility used to detect and remove specific viruses. It is not a substitute for full anti-virus protection, but rather a tool to assist administrators and users when dealing with an infected system. Stinger utilizes next generation scan engine technology, including process scanning, digitally signed DAT files, and scan performance optimizations.

This is a virus removal tool that we have had great success with over the years. It will remove "Sober" and many other viruses.

For more information and for a free download, visit the McAffee website: http://vil.nai.com/vil/stinger/