1200KM / sigma-rule
Suspicious Get-ADReplAccount — Sigma Rule
Sigma rule 060c3ef1-fd0a-4091-bf46-e7d625f60b73. Suspicious Get-ADReplAccount — Sigma Rule. The DSInternals PowerShell Module exposes several internal features of Active Directory and Azure Active Directory. These include FIDO2 and NGC key auditing, offline ntds.dit file manipulation, password auditing, DC recovery from IFM backups and password hash calculation.
Rule metadata and linked tags
Author: frack113. Source status: test; severity: medium. Source dates: 2022-02-06 / not supplied.
{
"product": "windows",
"category": "ps_script",
"definition": "Requirements: Script Block Logging must be enabled"
}Pinned original Sigma rule · Detection Rule License 1.1
Source SHA-256: 644ee411b579330fb74eb8a582fa7011b82ce1046cca6db9682cbe393fb40985
Detection logic
Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.
title: Suspicious Get-ADReplAccount
id: 060c3ef1-fd0a-4091-bf46-e7d625f60b73
status: test
description: |
The DSInternals PowerShell Module exposes several internal features of Active Directory and Azure Active Directory.
These include FIDO2 and NGC key auditing, offline ntds.dit file manipulation, password auditing, DC recovery from IFM backups and password hash calculation.
references:
- https://www.powershellgallery.com/packages/DSInternals
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1003.006/T1003.006.md#atomic-test-2---run-dsinternals-get-adreplaccount
author: frack113
date: 2022-02-06
tags:
- attack.credential-access
- attack.t1003.006
logsource:
product: windows
category: ps_script
definition: 'Requirements: Script Block Logging must be enabled'
detection:
selection:
ScriptBlockText|contains|all:
- Get-ADReplAccount
- '-All '
- '-Server '
condition: selection
falsepositives:
- Legitimate PowerShell scripts
level: medium
False positives
- Legitimate PowerShell scripts
Source references
Connected ecosystem references
Exact source-tagged techniques
Telemetry review
Read the original logsource above, then inspect the linked detection workspaces for technique-level sensor context. No per-rule telemetry equivalence is inferred.
Pinned research references. No browser attack runner, live simulation result or validated detector is asserted. Source mappings and validation limits are preserved. ATT&CK / Atomic provenance · Detection provenance.