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CE and VM

 
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korangar
How do I cheat?
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Joined: 21 Jan 2020
Posts: 1

PostPosted: Tue Jan 21, 2020 1:48 am    Post subject: CE and VM Reply with quote

Hi

This is my first post.

I´m trying to modify the memory of a process (P) running in VMware, using CE in the host (please, don´t answer "just use CE in the VM" since this is exactly what I´m trying to avoid. This process will know I'm running CE for sure (anti-cheat))

Just to see if I can do the same running CE and P on the same machine and running CE on the host and P on the guest, I run this test:

With CE and P (notepad in this case) on the same machine, I was able to find the text of the buffer and change it, the same with the length of the buffer. I was able to force notepad to overflow this buffer, printing a lot of trash and eventually being killed by the OS.

However when I try to do the same running CE on the host and notepad on the guest, sometimes, I can find the text and sometimes I can't. This depends on the word I write on notepad, for example, I can find the word "hello" but I can't find the word "cake" (I don't remember the exact examples). I´ve already enabled memory-mapped and UTF-16.

I've already read some interesting posts about CE and VM which recommend getting the CR3 register and doing some address arithmetic, however, I think it'll be easier to find the desired address with iterative searching (incrementing the value, searching some incremented value and so on).

Am I missing something here? Am I assuming something which is not correct?

Thanks in advance
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