msjcf.exe is a Trojan.Raker-B. msjcf.exe opens a back door. Related files: %System%\msjcf.exe More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill msjcf.exe process and remove msjcf.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.