PowerShell ADRecon Execution

Detects execution of ADRecon.ps1 for AD reconnaissance which has been reported to be actively used by FIN7

Sigma rule (View on GitHub)

 1title: PowerShell ADRecon Execution
 2id: bf72941a-cba0-41ea-b18c-9aca3925690d
 3status: test
 4description: Detects execution of ADRecon.ps1 for AD reconnaissance which has been reported to be actively used by FIN7
 5references:
 6    - https://github.com/sense-of-security/ADRecon/blob/11881a24e9c8b207f31b56846809ce1fb189bcc9/ADRecon.ps1
 7    - https://bi-zone.medium.com/from-pentest-to-apt-attack-cybercriminal-group-fin7-disguises-its-malware-as-an-ethical-hackers-c23c9a75e319
 8author: Bhabesh Raj
 9date: 2021-07-16
10modified: 2022-09-06
11tags:
12    - attack.discovery
13    - attack.execution
14    - attack.t1059.001
15logsource:
16    product: windows
17    category: ps_script
18    definition: 'Requirements: Script Block Logging must be enabled'
19detection:
20    selection:
21        ScriptBlockText|contains:
22            - 'Function Get-ADRExcelComOb'
23            - 'Get-ADRGPO'
24            - 'Get-ADRDomainController'
25            - 'ADRecon-Report.xlsx' # Default
26    condition: selection
27falsepositives:
28    - Unknown
29level: high

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