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OllyDbg and .bat files

Posted: Thu Aug 29, 2013 4:12 pm
by jhonniewalk
Hi all OllyDbg Gurus,

I'm trying to fix a specific target that uses .bat files to load the main application exe. I have successfully fixed this target by doing a modify/test for some dlls but this was a very lucky shot a very time consuming.

I have try everything that I can remember to load the application a make a step by step trace to read the code/values. I have passed information trough arguments but without any luck.

So I have loaded this .bat file in to OllyDbg, and start the step by step process to a particular call instruction that calls the main program and after this call I get the lic error and OllyDbg stops.

If i try to load the main exe It asks for specific variables %VAR% that are defined on the .bat file and it stops running.

Does any have deal with this type of application and that can share info how to bypass this?

Posted: Fri Aug 30, 2013 3:54 am
by deepzero
show us the bat file. it's possibly launching the exe with parameters, check for that.

Posted: Fri Aug 30, 2013 4:11 am
by jhonniewalk
Hi deepzero,

Thanks for your reply.

Since I'm not a hacker or a cracker, I don't want to start any cracking Thread here.

I have send you the .bat file trough PM can you have a look?

Regards