Cheat Engine

[Fakizun]

1. I wrote a simple aobscan code by the template
2. Allocated 1000h memory for the code
3. The code works but occasionally crashes
4. Found out it tries to access invalid pointers
5. It shouldn't happen so I had no idea where those pointers come from
6. Accidentally found out sometimes the upper part of my codes are getting allocated
7. Some windows stuff called OLEACC.dll is violating my safe space and first few lines of my codes were being overwritten by some filthy codes

Tried putting a bunch of nops and int3 to build a great wall but it wasn't helpful. I don't think no matter how much pointer verification I put in it will be enough against the code itself being overwritten. Can I allocate my code in a safer region? I have no idea how the memory allocation works but memories overlapping doesn't sound good at all, especially with the windows dlls.

[Dark Byte]

You can use alloc's 3th parameter to specify a memory region you wish to allocate at


but, does it crash when you have disabled it (at least once) or also when enabled (and never disabled)
did you have to rename cheat engine to get it to run ?

Most likely though your code injection part is called by other routines as well

[Fakizun]

[OldCheatEngineUser]

make sure there is no other module is accessed, and no more than one thread is executing the instructions.

i ended up with something similar, and all what i did is:

tried to see what accesses the address and hook that instruction, do modification and jump return.