You can download virus removal tools from trusted websites such as Microsoft word and Cnet or you can purchase a custom-made software removal tool. Dr. Safe Mode published the following information about how to remove viruses from your thumb drive.
All Conficker Worms are considered severe and each has the ability to disable important services on your computer. The worm might spread through file sharing and via removable drives. USB drives are especially susceptible. Shared computers with weak passwords are susceptible as well as computers without the latest security updates and computers with open shares.
No matter where computer worms and viruses come from, the end result is the same – your computer will suffer some damage. Some of the damages cannot be repaired and others will disable or slow certain functions on your computer at the absolute worst times.