ZwSetInformationThread

NTSTATUS __stdcall ZwSetInformationThread(
        PVOID ThreadHandle,
        THREADINFOCLASS ThreadInformationClass,
        PVOID ThreadInformation,
        UINT64 ThreadInformationLength){
  NTSTATUS result; 
  _disable();
  __readeflags();
  KiServiceInternal();
  return result;
}

Referenced by:

BiAcquirePrivilege
BiReleasePrivilege
DbgkUserReportWorkRoutine
EtwpCovSampCaptureContextStart
ExpWorkerFactoryCreateThread
RtlAcquirePrivilege
RtlImpersonateSelfEx
RtlReleasePrivilege