msautou.exe is a Trojan W32/Rbot-AOB. msautou.exe opens a back door on IRC channel. msautou.exe spreads via open network shares. Related files: %System%\msautou.exe More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill msautou.exe process and remove msautou.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.