WinPatrol uses a heuristic approach to detecting attacks and violations  of your computing environment. Unlike traditional security programs,  WinPatrol doesn't scan your hard drive searching for previously  identified threats. Instead a snapshot is taken of your critical system  resources and WinPatrol alerts you to any changes that occur without  your knowledge. You'll be warned and removing the threat immediately  while others wait to download new reference files.  
Licence Freeware.
WinPatrol 20.5.2011.0 Final
Download: WinPatrol 20.5.2011.0 Final (671 KB)
