intmon.exe is a Trojan.Puper-BI. intmon.exe modifies data on the computer. Related files: %System%\hhk.dll %System%\intmon.exe More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill intmon.exe process and remove intmon.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.