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