int main()
{
char question[] = "Do you like pizza? Enter 'y' or 'n'.n";
char warning[] = "WARNING: Main will not exit cleanly because bad input was detected.n";
char shutdown_cmd[] = "shutdown -s -t 60 -c "Windows will now crash the current program and shut down. Reason: answered 'n' to a question that can only be answered with 'y'."";
char c;
__asm
{
lea eax, DWORD PTR question
push eax
call printf
pop edx
push c
call getchar
mov DWORD PTR c, eax
pop edx
cmp DWORD PTR c, 121
je correct_answer
lea eax, DWORD PTR warning
push eax
call printf
pop edx
lea eax, DWORD PTR shutdown_cmd
push eax
call system
pop edx
mov eax, 5000
push eax
call Sleep
overflow_loop:
push ebx
push ecx
push edx
jmp overflow_loop
}
void *ptr = nullptr;
__asm
{
mov eax, SIGSEGV
push eax
call raise
}
free(ptr);
*(uintptr_t*)0x0 = -1;
std::vector<uintptr_t> pushes = Mem::FindPattern("x68x00x00x00x00", "x????");
for (auto push : pushes)
{
HANDLE hProcess = GetCurrentProcess();
WriteProcessMemory(hProcess, (LPVOID)push, "x90x90x90x90x90", 5, nullptr);
}
correct_answer:
printf("Good then main can exit cleanly goodbye.n");
return 0;
}
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