KeUnsecureThread

__int64 __fastcall KeUnsecureThread(_QWORD *a1){
  _ETHREAD *CurrentThread; 
  unsigned int SecureThreadCookie; 

  CurrentThread = (_ETHREAD *)KeGetCurrentThread();
  SecureThreadCookie = CurrentThread->Tcb.SecureThreadCookie;
  CurrentThread->Tcb.SecureThreadCookie = 0;
  return VslTerminateSecureThread(SecureThreadCookie, a1);
}

Referenced by:

PspExitThread