The anti-virus, virus

Summary: It's an infection moving around the net that is securing routers from traditional attack virus', essentially protecting you. But there's a catch, it's loaded with back-doors accessible by the author.

I'm not a criminal psychologist, I only play one on the internet, but I believe some hack group is trying to claim some turf by playing the good guy...

This vigilante virus protects you against malware attacks, quotes Richard Stallman | TechHive