Winint.exe is a Trojan W32.Sdbot-ADA. Winint.exe opens a back door. Winint.exe spreads via open network shares. Winint.exe monitors user Internet activity and private information. It sends stolen data to a hacker site. Related files: %System%\winint.exe More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill winint.exe process and remove winint.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.