Cheat Cs 1.6 Core.dll 13
Melia Hazinski
Disclaimer: In this post I will not explain how to hack any specific application or game, I will just mention some of the approaches that people who make cheats and bots use so that we can learn about them. No game was harmed in the process of making this.
cheat cs 1.6 core.dll 13
Download https://vlyyg.com/2A3m9A
Disclaimer: I do not promise that this is 100% bulletproof and works for everything. I am sure there are countermeasures to this that would require you to be even more clever. I have however not investigated how to protect yourself from this and will save that for another article. So if you care about this then consider the title a clickbait.
Some background information before starting this. Before doing this small project I had no previous experience with hacking or reverse engineering anything so what I did was just blindly test different stuff that I learned along the way.
Another thing before we start that perhaps is good to know is that there are two common approaches to design your hack that I am aware of, it can either be external or internal where external hints at a standalone application using the platform APIs to manipulate another process on the machine where internal injects itself into the process and attacks it from within.
This article will go through the steps I went through to investigate and eventually land on a solution. I will not go overly in-depth into any of the techniques, if something specific needs to be clarified however just tell me and I will try to answer to the best of my knowledge.
The most simple way to manipulate a game using this piece of software is to open your target process within Cheat Engine followed by searching for a known value within the application. A common example is if you currently have 100 health within your game you would scan for the value 100 within Cheat Engine, this would bring up thousands upon thousands of results of every address in memory that contains the value 100. To narrow it down Cheat Engine allows you to create a new scan for each variable that changed, so for example if you take some damage within the game and now have 70 health you would perform a new scan for all values that were 100 but are now 70.
This is a process you do over and over again until you have a manageable amount of addresses left. What you then can do is to select the addresses and manipulate them, for example manually changing the value to 200, if you found the correct health variable within your game your health would now be 200 because you set that address in memory to that value.
You can then scan that pointer map for a specific pointer and compare it between different runs of the game. What this essentially allows you to do is to find static offsets within the memory where things will always be located at.
So this is a chain of pointers that ends up with a value of 1000 within the loaded application. The interesting part that the pointer scan can do for us is that it scanned through a chain of addresses that ends up giving us our desired value. With this available, we have a static offset inside our target program that will persist between runs and we can write a program to change this value for us so that we can change our health value whenever we want.
So to find this address we can use the Windows API which has a handy function ready for us called CreateToolhelp32Snapshot which gives us a snapshot of a target process which includes its heaps, modules, and threads.
The reason is that the .NET compiler produces code that can run on the CLR (Common Language Runtime) which handles the stuff for you like garbage collection, runtime type checking, and reference checking.
Something weird you may notice is that there are question marks within the generated sequence, these are wildcards that exist because while the address may be moved around in memory the actual code will stay the same hence we use wildcards to aid us with finding these offsets even though the address space is updated between runs.
Important when doing this is that you only scan parts of memory that matter. What this means is that we can use the function VirtualQuery which will retrieve memory information of that memory region only yielding valid memory regions which will save us time.
Here it depends a bit if you are writing internal or external code, the example above was an external application that will modify the memory of the target application externally but below we are utilizing an internal application that is injected into the target as a DLL. The reason for this is that when utilizing DLL injection we are becoming a part of the target process meaning that we have access to its memory from within itself.
This is just as it sounds, a compiler that takes the code and compiles it to machine code as it is executed the first time. There is, of course, more to this if you were to dig down deeper into the CLR but for our purposes, this means that our signatures may not look the same each run as they are compiled on the fly. This can produce insanely long signatures (it did in my case) which takes a long time to look for.
ff 15 ? ? ? ? 48 8b 80 ? ? ? ? 48 83 c4 ? c3 cc cc cc cc cc cc cc cc cc cc 56 48 83 ec ? 48 8b f1 ff 15 ? ? ? ? 48 8d 88 ? ? ? ? 48 8b d6 ff 15 ? ? ? ? 90 48 83 c4 ? 5e c3 cc cc cc cc cc cc cc cc cc cc cc 48 83 ec ? ff 15 ? ? ? ? 48 8b 80 ? ? ? ? 48 83 c4 ? c3 cc cc cc cc cc cc cc cc cc cc 48 83 ec
What this technique means is that you boot up a CLR instance to get into a managed application space and execute your code there. If you were to do this from inside a DLL injected into an application this means that your code will now run alongside the already managed application and you will have access to everything like you would in a normal C# application.
To combine this with reflection, there are handy tools that play heavily upon the fact that .NET is compiled into IL code and can rebuild the C# code written in a very accurate way which you can inspect to find out more information. An example of such a program is ILSpy which I show an example screenshot of below alongside Visual Studio.
I think this was a very fun experience and I like something that Nick Cano mention early in his book that goes something along the lines that within every game there is another game available in addition to the one in the title, the cat and mouse game of wits between game developers and hackers. I think this is a fun way to look at it, almost like there is more to a game than the features you are supposed to interact with, more content that you can explore and even make yourself. This gives me the happy thought that nothing is stopping you from using this kind of technique to patch parts of a game that you are unhappy with or you want to improve.
During my vacation, I spent some time with an MMORPG that I had not played before. I was enjoying playing the game but when I had to get back to work I realized that I won\u2019t have time to play this game If I also want to make progress on my stuff like my game engine and my game.
The idea in my head was \u201CWhat if I could write a program to make the gameplay itself?\u201D. I played around a bit with this idea and like with many pictures like this it piqued my interest just enough for me to investigate what that kind of program would look like as well as if I have the skills to pull it off, so I rolled up my sleeves and got to work.
The target game I had in mind was built using .NET Core using FNA and was an open-source game. The reason I mention this is because many of the things I tried just simply won\u2019t work because of the technology the game was built with which we will get more into.
So the first thing I tried which I also knew about before because it is not only used for reverse engineering was to manipulate the game\u2019s memory. If you have ever been curious about cheats and perhaps googled around a bit I\u2019m sure many of you know a program called \u201CCheat Engine\u201D.
Many people are under the impression that this is a tool for people who want to make cheats but don\u2019t know how or just want to create small scripts. This is not true, Cheat Engine is a very valuable tool used for memory scanning and debugging. It is capable of scanning the memory of running processes on your computer as well as debugging the disassembled source code of the executable of your choice.
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