Cheat Engine

mStorm · Posted: Thu Mar 19, 2009 12:01 pm Post subject: Injection/Changing OpCodes

I used Wiccaan's "finding opcode address" source located here in the forums, and could find opcodes, but not the specific one I was looking for.

I'm thinking because was using pure readprocessmem from an outside process, it could not access these values even with PROCESS_ALL_ACCESS and changing the region to READWRITE_EXECUTE.

So will DLL injection solve this problem? When you inject, does it give the dll you injected full access to the memory since it's the same process, or do you still have to use VirtualProtect..

AlbanainRetard · Posted: Thu Mar 19, 2009 12:03 pm Post subject:

With an injeted dll like kitterz you can read with out RPM.

mStorm · Posted: Thu Mar 19, 2009 12:05 pm Post subject:

Ok, that's what I figured.

Does this give full access to even GUARDED pages?

kitterz · Posted: Thu Mar 19, 2009 12:05 pm Post subject: Re: Injection/Changing OpCodes

mStorm · Posted: Thu Mar 19, 2009 3:38 pm Post subject:

I am injecting my opcode search function into calc.exe, and it will find some matches, then it crashes due to access violation?

So you don't have full access to the .exe's memory even when injected?

Is there something I am missing?

smartz993 · Posted: Thu Mar 19, 2009 3:41 pm Post subject:

No.

If pages are marked as PAGE_READONLY, you must set the memory to writable.

mStorm · Posted: Thu Mar 19, 2009 3:50 pm Post subject:

smartz993 · Posted: Thu Mar 19, 2009 3:51 pm Post subject:

mStorm · Posted: Thu Mar 19, 2009 3:53 pm Post subject:

So, unlimited access is not real?... argh.