RtlCreateUserThread

function RtlCreateUserThread(

  hProcess: HANDLE;

  SecurityDescriptor: PSECURITY_DESCRIPTOR;

  CreateSuspended: Boolean;

  StackZeroBits: ULONG;

  StackReserve: ULONG;

  StackCommit: ULONG;

  lpStartAddress: PTHREAD_START_ROUTINE;

  lpParameter: PVOID;

  phThread: PHANDLE;

  ClientId: PCLIENT_ID

):NTSTATUS;