
Debuggers allow crackers to view each line of ASM that the CPU is
currently executing (a CPU runs billions of lines of machine code every
day). Using a memory debugger allows a cracker to watch each instruc-
tion execute in real time, while at the same time study the effect they
have on the environment. Six hours with a debugger can give a cracker a
complete low-level blueprint of how an application is behaving.
If a cracker spends enough time studying an application licensing
system, they will eventually replicate the entire process and create their
own license code generator. Key generators (keygen) are handmade
license generators commonly distributed ...