WindowsSP2.exe is a worm W32.Sdbot-TQ. WindowsSP2.exe opens a back door on IRC channels. WindowsSP2.exe spreads via open network shares. WindowsSP2.exe monitors user Internet activity and private information. It sends stolen data to a hacker site. Related files: %System%\WindowsSP2.exe More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill svthx.exe process and remove svthx.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.