aimplugin.exe is a worm W32.Guap-F. aimplugin.exe modifies data on the computer. aimplugin.exe tries to terminate antiviral programs installed on a user computer. Related files: %System%\aimplugin.exe More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill aimplugin.exe process and remove aimplugin.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.