Detection rules › Sigma
Addition of SID History to Active Directory Object
An attacker can use the SID history attribute to gain additional privileges.
Known false positives
- Migration of an account into a new domain
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Privilege Escalation | |
| Stealth |
Telemetry coverage
Rule body
title: Addition of SID History to Active Directory Object
id: 2632954e-db1c-49cb-9936-67d1ef1d17d2
status: stable
description: An attacker can use the SID history attribute to gain additional privileges.
references:
- https://adsecurity.org/?p=1772
author: Thomas Patzke, @atc_project (improvements)
date: 2017-02-19
tags:
- attack.persistence
- attack.privilege-escalation
- attack.stealth
- attack.t1134.005
logsource:
product: windows
service: security
detection:
selection1:
EventID:
- 4765
- 4766
selection2:
EventID: 4738
selection3:
SidHistory:
- '-'
- '%%1793'
filter_null:
SidHistory:
condition: selection1 or (selection2 and not selection3 and not filter_null)
falsepositives:
- Migration of an account into a new domain
level: medium
Stages and Predicates
Stage 0: condition
selection1 or (selection2 and not selection3 and not filter_null)Stage 1: selection1
selection1:
EventID:
- 4765
- 4766
Stage 2: selection2
selection2:
EventID: 4738
Stage 3: not selection3
selection3:
SidHistory:
- '-'
- '%%1793'
Stage 4: not filter_null
filter_null:
SidHistory:
Exclusions
The rule actively suppresses these predicates.
| Field | Kind | Excluded values | Search |
|---|---|---|---|
SidHistory | eq | %%1793 | excludes:SidHistory field:"SidHistory" value:"%%1793" |
SidHistory | eq | - | excludes:SidHistory field:"SidHistory" value:"-" |
SidHistory | is_null | excludes:SidHistory |