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