Cheat Engine

deadendthrills · How do I cheat? Reputation: 0 Joined: 14 Feb 2016 Posts: 4

I've been using Cheat Engine on Spec Ops: The Line to control things like character position and camera. Problem is that the game keeps crashing, even though the scripts themselves work correctly. Even if you run a script that just jumps to a code cave and back, the game will:

a) crash upon trying to load a level or often cutscenes
b) crash after a certain amount of time

I've tried using stealthedit but it made no difference. I tried using stealthedit to find integrity checks but nothing came up. I'm also not nearly good enough to know precisely what I'm looking for.

Any ideas what I should do next?

Spec Ops: The Line does have multiplayer but it's a tacked-on affair no one plays any more. I'm surprised the servers are still up. It's essentially a singleplayer game, which is what I'm trying to modify.

Negima · Posted: Sun Feb 14, 2016 8:04 am Post subject:

try creating an alternative code

deadendthrills · How do I cheat? Reputation: 0 Joined: 14 Feb 2016 Posts: 4

I've tried multiple opcodes and multiple methods and scripts. Same issue arises.

EDIT: Did a bit more digging. Turns out it's only the scripts which use cmp to filter out values which cause the crashes. Take those filters out and the game runs normally. Doesn't really help, unfortunately, as I haven't found a way to inject new values without filtering.

EDIT: Thought I'd make this a bit more useful with some images. One shows the code I'm interested in, and the other is the quick test script. Taking the cmp function out lets the game run as normal, but leave it in and the game will crash after a few minutes, or the moment you try to load a level.

Matze500 · Posted: Tue Feb 16, 2016 4:01 am Post subject:

As far as I know the game has an anti-cheat. That may cause the crashes.

Greets Matze

Cake-san · Posted: Tue Feb 16, 2016 6:17 am Post subject:

shouldn't it be like this ? Confused

mgr.inz.Player · Posted: Tue Feb 16, 2016 6:23 am Post subject:

The problem is you are inside memcpy function. It is used for many things. It copies memory region.

Check CPU stack for return pointer to get position of caller.

You will see a few push commands and a call to memcpy.

first push is size, second source pointer and third destination pointer.

deadendthrills · How do I cheat? Reputation: 0 Joined: 14 Feb 2016 Posts: 4

You'll have to forgive my ignorance here. How do I find the return pointer in the CPU stack?

mgr.inz.Player · Posted: Tue Feb 16, 2016 4:04 pm Post subject:

How did you find that injection point? You added address to the list and made "find out what ....". Right?

Highlight opcode, click more information, then click "S" button to see the stack. Fourth line should be the return address.

deadendthrills · How do I cheat? Reputation: 0 Joined: 14 Feb 2016 Posts: 4

Okay, I did that and found the three push instructions. Where do I go from here?

finnegan waking up · Posted: Wed Feb 24, 2016 5:08 pm Post subject:

i think you can patch the exe for the anticheat to get off.