
title: User Couldn't Call a Privileged Service 'LsaRegisterLogonProcess'
author: Roberto Rodriguez (source), Ilyas Ochkov (rule), oscd.community
date: 2019/10/24
description: The 'LsaRegisterLogonProcess' function verifies that the application
  making the function call is a logon process by checking that it has the SeTcbPrivilege
  privilege set. Possible Rubeus tries to get a handle to LSA.
detection:
  SELECTION_1:
    EventID: 4673
  SELECTION_2:
    Service: LsaRegisterLogonProcess()
  SELECTION_3:
    Keywords: '0x8010000000000000'
  condition: (SELECTION_1 and SELECTION_2 and SELECTION_3)
falsepositives:
- Unknown
id: 6daac7fc-77d1-449a-a71a-e6b4d59a0e54
level: high
logsource:
  product: windows
  service: security
modified: 2021/08/14
references:
- https://posts.specterops.io/hunting-in-active-directory-unconstrained-delegation-forests-trusts-71f2b33688e1
status: experimental
tags:
- attack.lateral_movement
- attack.privilege_escalation
- attack.t1208
- attack.t1558.003
ruletype: SIGMA
