ahui32.exe is a Trojan.Certif-M. ahui32.exe monitors user Internet activity and private information. It sends stolen data to a hacker site. Related files: %System%\ahui32.exe More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill ahui32.exe process and remove ahui32.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.