mirror of
https://github.com/valitydev/SigmaHQ.git
synced 2024-11-07 09:48:58 +00:00
36 lines
1.2 KiB
YAML
36 lines
1.2 KiB
YAML
title: Active Directory Replication from Non Machine Account
|
|
id: 17d619c1-e020-4347-957e-1d1207455c93
|
|
description: Detects potential abuse of Active Directory Replication Service (ADRS) from a non machine account to request credentials.
|
|
status: experimental
|
|
date: 2019/07/26
|
|
modified: 2020/08/23
|
|
author: Roberto Rodriguez @Cyb3rWard0g
|
|
references:
|
|
- https://threathunterplaybook.com/notebooks/windows/06_credential_access/WIN-180815210510.html
|
|
tags:
|
|
- attack.credential_access
|
|
- attack.t1003 # an old one
|
|
- attack.t1003.006
|
|
logsource:
|
|
product: windows
|
|
service: security
|
|
detection:
|
|
selection:
|
|
EventID: 4662
|
|
AccessMask: '0x100'
|
|
Properties|contains:
|
|
- '1131f6aa-9c07-11d1-f79f-00c04fc2dcd2'
|
|
- '1131f6ad-9c07-11d1-f79f-00c04fc2dcd2'
|
|
- '89e95b76-444d-4c62-991a-0facbeda640c'
|
|
filter:
|
|
- SubjectUserName|endswith: '$'
|
|
- SubjectUserName|startswith: 'MSOL_' #https://docs.microsoft.com/en-us/azure/active-directory/hybrid/reference-connect-accounts-permissions#ad-ds-connector-account
|
|
condition: selection and not filter
|
|
fields:
|
|
- ComputerName
|
|
- SubjectDomainName
|
|
- SubjectUserName
|
|
falsepositives:
|
|
- Unknown
|
|
level: critical
|