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How to make a Memory Scanner like Cheat Engine?

 
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oyy5408
How do I cheat?
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Joined: 28 Apr 2010
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PostPosted: Thu Oct 21, 2010 12:22 pm    Post subject: How to make a Memory Scanner like Cheat Engine? Reply with quote

Because cheat engine gets detected, I wanted to create a simple memory scanner that would do pretty much the same job as cheat engine (but probably as not as sophisticated) because 'CheatEngine' would get detected by GameGuard.

It seems like I can read and write memory using few DLLs but how can I 'scan' memories and find the result?

Please help me : (..
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Stylo
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PostPosted: Thu Oct 21, 2010 1:45 pm    Post subject: Reply with quote

My suggestion is to write a scanner that runs via an injected dll.
that way you have a direct access into the game's memory and you won't have to use ReadProcessMemory / Write . . .

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oyy5408
How do I cheat?
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PostPosted: Thu Oct 21, 2010 3:46 pm    Post subject: Reply with quote

So then my question now is:
how do you write a script that "runs via an injected dll"
I have very shallow knowledge of dll stuff.. so please help me out
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oyy5408
How do I cheat?
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PostPosted: Fri Oct 22, 2010 2:10 pm    Post subject: Reply with quote

Any ideas? anyone?
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Stylo
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PostPosted: Fri Oct 22, 2010 2:46 pm    Post subject: Reply with quote

well . .
first of all you need to know how to program
then learn how to access a process's memory
and right after that learn how to code a dll in that language and inject that dll into the process u wish to access it's memory
if you don't know how to to everything i just said, then it's a big problem.

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oyy5408
How do I cheat?
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PostPosted: Fri Oct 22, 2010 4:21 pm    Post subject: Reply with quote

ok, I use autohotkey. And I have a UDF that accesses and writes memory (I'm thinking of making a scanner by reading from 0000000 to 007FFFFF Manually)

Coding a DLL. I do not know how : (

what does that even mean?
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STN
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PostPosted: Sun Oct 24, 2010 8:52 pm    Post subject: Reply with quote

I don't think this is for you. what you need to do is use CE's stealth feature or if it is being detected by its title, use a caption changing tool. I coded one which you can get here (look for caption changer)
http://forum.cheatengine.org/viewtopic.php?t=309234

I don't know about GameGuard, but if the above doesn't work, it could be more advanced detection scheme are being used than just simple stuff. You'd need to be reading on defeating gameguard then.

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iPromise
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PostPosted: Thu Nov 11, 2010 8:29 pm    Post subject: This post has 1 review(s) Reply with quote

Use these functions / structures to create your own scanning functions (these will give you an idea):

- MEMORY_BASIC_INFORMATION
- VirtualQuery
- VirtualProtect (in some cases, this is needed)


For a UI (user interface) you can use CreateWindow or DialogBox to initialize the window.
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