Cheat Engine

[RichRD]

Hello , so i was poking around with cheat engine to make a hack for application i want but i got in dead end i came across this code:

[lucid]

I'm not perfectly sure here, I'm still learning myself, but I'm pretty sure it's like this

ret 0004 is the counterpart to a call, which is like a jmp but it has a return point (utilized by ret). Look for call 0004 somewhere around there in the opcode (you can also do a search).

lea takes the address a pointer is pointing to and puts it inside of a register. In your case it is putting the address [esp+00] points to inside of esp.

I'm not sure how to help you work out finding doors or anything, as I don't know what game it is or how you found those opcodes. Hope what little I do know helped though (if it's right)

[RichRD]

thx with that lea but with ret 0004 it says that it pops 4 bytes off the stack but i dont know how meany bytes i pushed in if i pushed more then 4 bytes will the rest still be used by the program?

Also if some one can translate me that code to c++ i would be very grateful.
jne myapp.exe+5942F7 jumps to cmp [eax+04],edx
je myapp.exe+594308 jumps to mov ecx,[edx+04]
jne myapp.exe+594300 jumps to mov eax,[eax+04]

[TsTg]

In the routine you posted, only EBP was pushed at begining, then the RET XX or RET will pop out the bytes it has pushed automatically on execution(so don't worry about it, and don't try to change it or mostly program will crash)

also, the lea esp,[esp+00] is actually useless, as esp+00 means esp, and the lea means to assign the pointer of what's inside esp, to esp, to be clear, this line is equivalent to mov esp,esp

[RichRD]

I dont understand i changed all compares to cmp eax,eax and nothing happened game run good open doors still good no crash i got angry and changed all compares and jumps to NOP still game run fine open doors still game runs fine changed all code to NOP game crash when opening doors what the hell is happening i know im @ the right spot but this is madness.

forget to mention that locked doors wont open no mater what i do to the code.

[TsTg]

What exactly are you trying to hack in that game?, and why are you messing up with the compare commands ?, you can test the jumps instead(set them to nop, make unconditional jumps,etc)

and if you are trying to open those 'locked doors', and you say nothing happens whatever changes yo make to the code, then mostly it's not the 'right spot' you are looking for .

[RichRD]

I will put some pic's to show what im doing in CE and how locked and unlocked doors look.