shellcode_loader.c

unsigned char shellcode[] = "\xCC\x90\x90\x90\x90...";

int main(int argc, char argv)
{
	auto buffer = ::VirtualAlloc(nullptr, 0x1000, MEM_COMMIT, PAGE_READWRITE);
	memcpy(buffer, &shellcode, sizeof(shellcode));
	DWORD ignored;
	::VirtualProtect(buffer, sizeof(shellcode), PAGE_EXECUTE_READ, &ignored);
	auto f = reinterpret_cast<int32_t(*)()>(buffer);
	f(); 
	::VirtualFree(buffer, 0, MEM_RELEASE);
}