Injection Risk?

I am currently on MrCaths hack, which is a launcher (Means I can turn it on and off with a snap), but I find that injections are more interesting and have more to offer, but could I permanently damage my bf3.exe file? get banned?

All replies welcome

You're asking if you can permanently break your game if you use Injectors? No.
The injector has nothing to do with hacking really. It's the .dll you use to hack.

DLLs are program extentions, if you don't know that yet. They add to it, instead of changing anything.