Cheat Engine

[ukgee]

Hey folks, I have an application which I wish to tinker with a little.... when I open it in CE I have a memory address e.g 0x12345678

This line is basically a "JNE" to another pointer, I am wondering how I would go about changing the JNE to a JMP within a C++ DLL as this is an array of bytes.

I can change it manually each time however I would prefer this to be automated via the injection of the DLL and the memory address is static and does not change when I re-open the EXE

Any help would be greatly appreciated.

Edit: since this makes no sense

I have an address value of 0x12345678
I look at this in CE and it says (JNE 98765432)
how do I define that memory address within a C++ DLL and alter it
so that when I inject the DLL the address now equals (JMP 98765432)

[Innovation]

How many bytes does the offset take up?

[ukgee]

O_o how would I find out.... the address I am referencing is static it is always the same even after restarting the app...

[661089799107]

First step would be to change the protection of the region by using VirtualProtect.

Then you modify the instruction depending on the type of jump.

Assuming a short jump (2 byte):

[ukgee]

Ahhh I see, I have changed it to EB in CE from 75 which was JNE.... am I right in presuming it may be 2 byte? I will look into it more and do some research so as to understand things a bit better.

so far I have mainly focused on message handling and creation of child objects but not directly influenced the memory via the DLL.

[661089799107]

[ukgee]

Thanks, I'll get right to it... is there a defined array size for each? I'm just curious as I noticed you used targetAddress[0] meaning the first entry in the array which in this case if I am comprehending this correctly would be the first byte in the array of bytes.

Curious to know how else it can be used... will get learning

[661089799107]