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xerox 4 years ago
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README.md
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This section will go into detail about what exactly is going on here. csrss.exe/lsass.exe have handles to all processes and since battleye strips the R/W access of the handle that these processes have This section will go into detail about what exactly is going on here. csrss.exe/lsass.exe have handles to all processes and since battleye strips the R/W access of the handle that these processes have
to the game it can cause system instability. Thus bedaisy writes two pages of shellcode to both processes and inline hooks `NtReadVirtualMemory` and `NtWriteVirtualMemory`. to the game it can cause system instability. Thus bedaisy writes two pages of shellcode to both processes and inline hooks `NtReadVirtualMemory` and `NtWriteVirtualMemory`.
If you run a battleye protected game, open cheat engine, attach to `lsass.exe`, and navigate to `NtReadVirtualMemory`/`NtWriteVirtualMemory` you will see this inline hook... If you run a battleye protected game, open cheat engine, attach to `lsass.exe`, and navigate to `NtReadVirtualMemory`/`NtWriteVirtualMemory` you will see this inline hook...
<img src="https://imgur.com/E7KAeoV.png"/>
This inline hook jumps to shellcode that packages all of the parameter values passed to `NtReadVirtualMemory` into the stack and then jumps to `DeviceIoControl`...
<img src="https://imgur.com/DpFyC9p.png"/>
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