PUA - Suspicious ActiveDirectory Enumeration Via AdFind.EXE

Detects active directory enumeration activity using known AdFind CLI flags

Sigma rule (View on GitHub)

 1title: PUA - Suspicious ActiveDirectory Enumeration Via AdFind.EXE
 2id: 455b9d50-15a1-4b99-853f-8d37655a4c1b
 3related:
 4    - id: 9a132afa-654e-11eb-ae93-0242ac130002
 5      type: similar
 6    - id: 514e7e3e-b3b4-4a67-af60-be20f139198b
 7      type: similar
 8status: test
 9description: Detects active directory enumeration activity using known AdFind CLI flags
10references:
11    - https://www.joeware.net/freetools/tools/adfind/
12    - https://social.technet.microsoft.com/wiki/contents/articles/7535.adfind-command-examples.aspx
13    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1087.002/T1087.002.md
14author: frack113
15date: 2021-12-13
16modified: 2023-03-05
17tags:
18    - attack.discovery
19    - attack.t1087.002
20logsource:
21    product: windows
22    category: process_creation
23detection:
24    selection_password: # Listing password policy
25        CommandLine|contains:
26            - lockoutduration
27            - lockoutthreshold
28            - lockoutobservationwindow
29            - maxpwdage
30            - minpwdage
31            - minpwdlength
32            - pwdhistorylength
33            - pwdproperties
34    selection_enum_ad: # Enumerate Active Directory Admins
35        CommandLine|contains: '-sc admincountdmp'
36    selection_enum_exchange: # Enumerate Active Directory Exchange AD Objects
37        CommandLine|contains: '-sc exchaddresses'
38    condition: 1 of selection_*
39falsepositives:
40    - Authorized administrative activity
41level: high

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