Question about internals

Hello,today i got a private internal cheat from a friend,but he told me it's detected.
I made it polycompatibile,it compiles and gives me .dll
So my questions are:
1.Is it still detected if poly randomised code and added junk?
2.Can i use any injector or i should code mine?
And all works except aimbot,when i turn it on,it crashes the game,what can be the problem?

2. Would be better if you're gonna code your own injector, less possibility to get untrusted from pub injectors.

You just use Xenos and inject while in main menu with Erase PE headers enabled. Poly should be okay, but you should code your own since adding junk into internal is way too retarded and you would never beat anyone in HvH if you wish since your hack will run inefficient cause of the junk code you added.