如何改变在另一个进程的存储器空间中的值 [英] How to change a value in memory space of another process

问题描述

如果你能帮助我这个两难我有。现在，我知道的C \\ C ++，我知道ASM，我知道dll注入，我是知道的虚拟内存寻址，但我只是无法弄清楚如何
像CheatEngine和其他软件，管理在另一个进程中改变一个变量的值。

If you could help me with this dilemma I have. Now, I know C \ C++, I know asm, I know about dll injection, I know about virtual memory addressing, but I just can't figure out how software like CheatEngine, and others, manage to change a variable's value in another process.

对于那些不知道是谁，第三方作弊引擎工具可以在程序的内存空间扫​​描值与给定值确定一个变量的位置和改变它。

For those who don't know, 3rd party cheat engine tools can scan for values in the memory space of a program and identify the location of a variable with a given value and change it.

我的问题是，他们是如何做到的？

My question is, how do they do it?

提供的地址，如果我是写C code，我怎么能在属于另一个进程没有得到一个无效地址错误地址更改值？

Given an address, if I were to write C code, how could I change the value at that address belonging to another process without getting an invalid addressing error?

感谢。

推荐答案

我相当肯定这些程序是pretending是调试器。在Windows中，我将开始与的DebugActiveProcess（）并从那里

I'm fairly certain those programs are pretending to be debuggers. On Windows, I would start with DebugActiveProcess() and go from there.

哦，非常有用的寻找 ReadProcessMemory（）函数 （和WriteProcessMemory的（））。

Oh, and the very useful looking ReadProcessMemory() function (and WriteProcessMemory()).

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