NoBackDoors is an antihacker program that searches your computer and detects backdoor programs like NetBus and Back Orifice. This program can be set to run in the background and continually scan for cyber-interlopers. When it finds them, it will alert you to the invasion and immediately kill their access in order to minimize possible damage. NoBackDoors can also compile and report valuable information about what started the back door in the first place.

Limitations: 15-day trial