Cheat Engine

Bennnie · Newbie cheater Reputation: 0 Joined: 29 Aug 2012 Posts: 11

In 'Memory viewer -> Tools -> Create Thread' there is a Cheat Engine function to spawn threads from within cheat engine that uses the target's programs code. I would like to use that function to be able to start off events in games. I am currently trying to learn how to use that function but I can't get to get it to work. The games always crash when using it.

I made a very basic console program in C#. It contains an extremely simple parameterless method that I want to start from CE:
public void Func1()
{
Console.WriteLine("-1");
}

In the attachments you see Cheat Engine on the left, and Visual Studio on the right. The start of the function must be 07574F70.

When starting a thread in CE, I expect '-1' to be written to the console like Func1() has been executed. But that does not happen. Instead it crashes with '(process 13840) exited with code -1073741819.'.

I also tried filing in the registry values by starting the thread, instantly hit a breakpoint and filling in the registry values but that also doesn't work. That also shouldn't be necessary because it is a parameterless method, right...?

Any tips for getting to fire Func1() from CE without crashing the progam? Any help is greatly appreciated Very Happy

Dark Byte · Posted: Sat Jan 07, 2023 7:49 am Post subject:

c# is the worst when experimenting with creating threads as each thread has a TLS that needs to be setup before it can access any .net function, and not to mention that since it's a method of the class ExThread you need to provide it an instance to an existing ExThread object, or make it a static method/class that can run without initializing "self"

I recommend writing your test application in C (not even C++) and experiment with that

Bennnie · Newbie cheater Reputation: 0 Joined: 29 Aug 2012 Posts: 11

Not the answer I was hoping for. If I cant do this to a program i've written in c#, it would also mean that doing this in a game would probably make it very hard (as in, impossible for me) to kick off a function in a game. It depends on the language it has been written in of course.

Thanks for the help. I guess I need to brush up my C skills.