How to Crack a Program using OllyDbg

Software Cracking is the art of breaking security protections in a software. Generally software cracks are distributed in the form of patches to the original software or keygen programs which generate arbitrary key / serial combinations. A Cracker works his way through a program by disassembling it and understanding the security protections built into it. He then proceeds to alter the behavior of the program by finding and changing (patching) the routines responsible for the security mechanisms, in order to allow full unlimited access to the program. Alternately, he can also reverse engineer the key / serial comparison routines and write a keygen for the program. This allows users to generate arbitrary valid keys / serials for the program.

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