I had heard that it was xtrap or maybe that was philipeans.
Anyway you can use signiture scanning like I do in map fun *the source is on the internet*
An injected DLL should work fine just need a good injector you can make one your self easy enough with guides online.
If you cant get past game guard, I would suggest finding the hacks on aeria then making signitures and coding it into a dll it should work on the other version for most things.
