Added extra check

HookByName.cpp

#include <Windows.h>
#include <iostream>
#include "MinHook.h"

// Hooks a function at a given address given the hook function and trampoline function
BOOL setHook(LPVOID* origAddress, LPVOID* hookFunction, LPVOID* trampFunction)
{
	if (MH_CreateHook(origAddress, hookFunction, reinterpret_cast<LPVOID*>(trampFunction)) != MH_OK)
	{
		return FALSE;
	}

	if (MH_EnableHook(origAddress) != MH_OK)
	{
		return FALSE;
	}

	return TRUE;
}

// Attaches a hook on a function given the name of the owning module and the name of the function
BOOL attach(LPWSTR wstrModule, LPCSTR strFunction, LPVOID* hook, LPVOID* original)
{
	HMODULE hModule = GetModuleHandle(wstrModule);
	if (hModule == NULL)
	{
		return FALSE;
	}

	FARPROC hFunction = GetProcAddress(hModule, strFunction);
	if (hFunction == NULL)
	{
		return FALSE;
	}

	return setHook((LPVOID*)hFunction, hook, original);
}

// Store whether the process was suspended or not
BOOL Suspended = FALSE;

// Basic hook setup for CreateProcessW
typedef BOOL(WINAPI *PfnCreateProcessW)(LPCWSTR lpApplicationName, LPWSTR lpCommandLine, LPSECURITY_ATTRIBUTES lpProcessAttributes, LPSECURITY_ATTRIBUTES lpThreadAttributes, BOOL bInheritHandles, DWORD dwCreationFlags, LPVOID lpEnvironment, LPCWSTR lpCurrentDirectory, LPSTARTUPINFOW lpStartupInfo, LPPROCESS_INFORMATION lpProcessInformation);
PfnCreateProcessW pfnCreateProcessW = NULL;

BOOL WINAPI HfnCreateProcessW(LPCWSTR lpApplicationName, LPWSTR lpCommandLine, LPSECURITY_ATTRIBUTES lpProcessAttributes, LPSECURITY_ATTRIBUTES lpThreadAttributes, BOOL bInheritHandles, DWORD dwCreationFlags, LPVOID lpEnvironment, LPCWSTR lpCurrentDirectory, LPSTARTUPINFOW lpStartupInfo, LPPROCESS_INFORMATION lpProcessInformation)
{
	// Flag the process to be suspended on creation
	dwCreationFlags |= CREATE_SUSPENDED;
	Suspended = (dwCreationFlags & CREATE_SUSPENDED) == CREATE_SUSPENDED;

	printf("CreateProcessW: %ws\n", lpApplicationName);
	return pfnCreateProcessW(lpApplicationName, lpCommandLine, lpProcessAttributes,	lpThreadAttributes, bInheritHandles, dwCreationFlags, lpEnvironment, lpCurrentDirectory, lpStartupInfo,	lpProcessInformation);
}

int main(int argc, char* argv[])
{
	MH_Initialize();
	
	// Attach a hook on CreateProcessW
	BOOL hook = TRUE;
	hook &= attach(L"kernelbase.dll", "CreateProcessW", (LPVOID*)&HfnCreateProcessW, (LPVOID*)&pfnCreateProcessW);

	if (!hook)
	{
		std::cout << "Could not attach the hook" << std::endl;
		return FALSE;
	}

	PROCESS_INFORMATION ProcessInfo; 
	STARTUPINFO StartupInfo;

	ZeroMemory(&StartupInfo, sizeof(StartupInfo));
	StartupInfo.cb = sizeof StartupInfo;
	
	// CreateProcess example to show the hook worked
	if (CreateProcess(L"C:\\Windows\\Notepad.exe", NULL,NULL, NULL, FALSE, 0, NULL, NULL, &StartupInfo, &ProcessInfo))
	{
		std::cout << "The process was created\n";
		std::cout << "PID: (" << ProcessInfo.dwProcessId << ")\n";
		std::cout << "Suspended: " << (Suspended ? "True" : "False") << std::endl;
		CloseHandle(ProcessInfo.hThread);
		CloseHandle(ProcessInfo.hProcess);
	}
	else
	{
		std::cout << "Failed to create the process" << std::endl;
	}

	system("PAUSE");
	
	MH_Uninitialize();
	
	return TRUE;
}