waudio.exe is a Trojan.Agent-AAJ. waudio.exe monitors user Internet activity and private information. It sends stolen data to a hacker site. Related files: %Windows%\dupadupam1.exe %Windows%\waudio.exe More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill waudio.exe process and remove waudio.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.