Detection rules › Sigma
Suspicious Get-ADDBAccount Usage
Detects suspicious invocation of the Get-ADDBAccount script that reads from a ntds.dit file and may be used to get access to credentials without using any credential dumpers
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Credential Access | T1003.003 OS Credential Dumping: NTDS |
Event coverage
| Provider | Event | Title |
|---|---|---|
| PowerShell | Event ID 4103 | Payload Context: ContextInfo User Data: UserData. |
Rule body yaml
title: Suspicious Get-ADDBAccount Usage
id: b140afd9-474b-4072-958e-2ebb435abd68
status: test
description: Detects suspicious invocation of the Get-ADDBAccount script that reads from a ntds.dit file and may be used to get access to credentials without using any credential dumpers
references:
- https://www.n00py.io/2022/03/manipulating-user-passwords-without-mimikatz/
- https://github.com/MichaelGrafnetter/DSInternals/blob/7ba59c12ee9a1cb430d7dc186a3366842dd612c8/Documentation/PowerShell/Get-ADDBAccount.md
author: Florian Roth (Nextron Systems)
date: 2022-03-16
tags:
- attack.credential-access
- attack.t1003.003
logsource:
product: windows
category: ps_module
definition: 0ad03ef1-f21b-4a79-8ce8-e6900c54b65b
detection:
selection:
Payload|contains|all:
- 'Get-ADDBAccount'
- 'BootKey '
- 'DatabasePath '
condition: selection
falsepositives:
- Unknown
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
Payload|contains|all:
- 'Get-ADDBAccount'
- 'BootKey '
- 'DatabasePath '
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
Payload | match |
|