rewolf-wow64ext
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Strange crash when run outside of debugger on Windows 10
Hello, thanks for your project. This is really great.
I'm trying to use the library on Windows 10 64-bit. Under Visual Studio's debugger or WinDbg, the program runs fine. When I run it from explorer or cmd, it crashes. To test, I am using the sample program provided, compiled with VS 2017 build tools. It also crashes when compiled with VS 2015 build tools. I tried compiling it myself and using the precompiled dll.
Interestingly, GetModuleHandle64
seems to work fine, but other functions like ReadProcessMemory64
or WriteProcessMemory64
cause a crash.
Some example code:
printf("hello world\n");
DWORD64 ntdll = GetModuleHandle64(L"ntdll.dll"); // OK
printf("ntdll 64 = %llx\n", ntdll);
HANDLE hProcess = GetCurrentProcess();
char mem[10];
BOOL succ = ReadProcessMemory64(hProcess, ntdll, mem, sizeof(mem), NULL); // crash
My Windows version is 10 Enterprise LTSC / 10.0.17763 Build 17763
I attached an compiled exe that is causing the crash here. This is the sample program. main.zip