How to remove backdoor behavior?

[shaun279]

I found a program used to crack the license of a anti-malware called Emsisoft. When i opened it, the cracking program was behaving as a backdoor. I don't know almost anything about programming. How do i remove this backdoor behavior? The program is a .exe file, which i think i'm suppose to decompile it to remove the backdoor codes.

[atom0s]

You'll have to debug and locate the code that is unwanted then either alter the executable to not execute it by something such as a jump etc. or nop out the code entirely.

[shaun279]

Is it possible for someone to help me remove it?

[redspartan927]

Use ollydbg (Olly Debugger) and find the unwanted code....If you think the software you're debugging is not a Virus, the you should turn off AntiVirus before debugging. It is not recommended, but if you trust it, then do it.

[atom0s]

Do the debugging / code removal in a VM to prevent it from potentially destroying your system as well.