Follow these steps, videos included.
Once a virus has been allowed to execute there is no real way to contain it. Your best bet would be to remove the offending virus with a removal tool. This is the procedure we use when removing viruses.
1. Boot into Safe Mode - How 2 Video (http://blip.tv/file/4791877)
2. Remove Proxy Servers from Internet Explorer to Restore Internet - How 2 Video (http://blip.tv/file/4792596)
3. Uninstall Your AntiVirus Protection
3a. Norton Removal Instructions - (http://www.peacea.com/norton-removal-tool)
3b. McAfee Removal Instructions - (http://www.peacea.com/mcafee-removal-tool)
3c Microsoft Security Essentials (uninstall in the control panel)
4. Removing Unecessary Files and Settings with cCleaner (http://blip.tv/file/4792165)
5. Removing Viruses with ComboFix - How 2 Video (http://blip.tv/file/4784362)
6. Removing Viruses with Malwarebytes - How 2 Video (http://blip.tv/file/4784338)
7. Removing Viruses with TDSS Killer - How 2 Video (http://blip.tv/file/4784533)
8. Clean Your Computer Registry with RegVac - How 2 Video (http://blip.tv/file/4792031)
9. Install a better Anti-Virus solution
9a. AVG Internet Security (http://www.peacea.com/avg2011)
9b. Kapersky Internet Security