Who am I

The code is getting darker and murkier,
I was meant to be a Polymorphic one,
The designer made a metamorphic one,
The programmer developed an E.P.O.

I tried to mutate morph, spread and multiply,
I Encrypted my soul with a different key each time,
I pretended decryption routines,
I inserted and removed garbage instructions.

I switched op codes  & replaced entire logic blocks,
I patched function prologues& redirected control flows,
They said, I was in the wild,
They caught me, abused me, insulted me and disgraced me.

They could never crack my code,
So they put me in a "ZOO" and gave me a name "Crazy Hax0r"