msusvc.exe is a Trojan W32.Rbot-ANS. msusvc.exe opens a back door on IRC channel. msusvc.exe spreads via open network shares. msusvc.exe tries to terminate antiviral programs installed on a user computer. msusvc.exe monitors user Internet activity and private information. It sends stolen data to a hacker site. Related files: %System%/msusvc.exe More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill msusvc.exe process and remove msusvc.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.