Potential Active Directory Enumeration Using AD Module - ProcCreation

calendar Dec 1, 2023 · attack.reconnaissance attack.discovery attack.impact  ·
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Detects usage of the "Import-Module" cmdlet to load the "Microsoft.ActiveDirectory.Management.dl" DLL. Which is often used by attackers to perform AD enumeration.

Sigma rule (View on GitHub)

 1title: Potential Active Directory Enumeration Using AD Module - ProcCreation
 2id: 70bc5215-526f-4477-963c-a47a5c9ebd12
 3related:
 4    - id: 9e620995-f2d8-4630-8430-4afd89f77604
 5      type: similar
 6    - id: 74176142-4684-4d8a-8b0a-713257e7df8e
 7      type: similar
 8status: test
 9description: Detects usage of the "Import-Module" cmdlet to load the "Microsoft.ActiveDirectory.Management.dl" DLL. Which is often used by attackers to perform AD enumeration.
10references:
11    - https://github.com/samratashok/ADModule
12    - https://twitter.com/cyb3rops/status/1617108657166061568?s=20
13    - https://www.ired.team/offensive-security-experiments/active-directory-kerberos-abuse/active-directory-enumeration-with-ad-module-without-rsat-or-admin-privileges
14author: frack113
15date: 2023/01/22
16tags:
17    - attack.reconnaissance
18    - attack.discovery
19    - attack.impact
20logsource:
21    product: windows
22    category: process_creation
23detection:
24    selection_img:
25        - Image|endswith:
26              - '\powershell.exe'
27              - '\pwsh.exe'
28        - OriginalFileName:
29              - 'PowerShell.EXE'
30              - 'pwsh.dll'
31    selection_cmdlet:
32        CommandLine|contains:
33            - 'Import-Module '
34            - 'ipmo '
35    selection_dll:
36        CommandLine|contains: 'Microsoft.ActiveDirectory.Management.dll'
37    condition: all of selection_*
38falsepositives:
39    - Legitimate use of the library for administrative activity
40level: medium

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