PUA - Suspicious ActiveDirectory Enumeration Via AdFind.EXE

Description

Detects active directory enumeration activity using known AdFind CLI flags

Query · sigma

selection_password:
  CommandLine|contains:
  - lockoutduration
  - lockoutthreshold
  - lockoutobservationwindow
  - maxpwdage
  - minpwdage
  - minpwdlength
  - pwdhistorylength
  - pwdproperties
selection_enum_ad:
  CommandLine|contains: -sc admincountdmp
selection_enum_exchange:
  CommandLine|contains: -sc exchaddresses
condition: 1 of selection_*

Known false positives

  • Authorized administrative activity
Raw source PUA - Suspicious ActiveDirectory Enumeration Via AdFind.EXE · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: PUA - Suspicious ActiveDirectory Enumeration Via AdFind.EXE
id: 455b9d50-15a1-4b99-853f-8d37655a4c1b
related:
    - id: 9a132afa-654e-11eb-ae93-0242ac130002
      type: similar
    - id: 514e7e3e-b3b4-4a67-af60-be20f139198b
      type: similar
status: test
description: Detects active directory enumeration activity using known AdFind CLI flags
references:
    - https://www.joeware.net/freetools/tools/adfind/
    - https://social.technet.microsoft.com/wiki/contents/articles/7535.adfind-command-examples.aspx
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1087.002/T1087.002.md
author: frack113
date: 2021-12-13
modified: 2023-03-05
tags:
    - attack.discovery
    - attack.t1087.002
logsource:
    product: windows
    category: process_creation
detection:
    selection_password: # Listing password policy
        CommandLine|contains:
            - lockoutduration
            - lockoutthreshold
            - lockoutobservationwindow
            - maxpwdage
            - minpwdage
            - minpwdlength
            - pwdhistorylength
            - pwdproperties
    selection_enum_ad: # Enumerate Active Directory Admins
        CommandLine|contains: '-sc admincountdmp'
    selection_enum_exchange: # Enumerate Active Directory Exchange AD Objects
        CommandLine|contains: '-sc exchaddresses'
    condition: 1 of selection_*
falsepositives:
    - Authorized administrative activity
level: high
regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_pua_adfind_enumeration/info.yml

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