45 lines
1.0 KiB
YAML
45 lines
1.0 KiB
YAML
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title: AD Privileged Users or Groups Reconnaissance
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author: Samir Bousseaden
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date: 2019/04/03
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description: Detect priv users or groups recon based on 4661 eventid and known privileged
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users or groups SIDs
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detection:
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SELECTION_1:
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EventID: 4661
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SELECTION_2:
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ObjectType:
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- SAM_USER
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- SAM_GROUP
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SELECTION_3:
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ObjectName:
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- '*-512'
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- '*-502'
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- '*-500'
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- '*-505'
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- '*-519'
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- '*-520'
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- '*-544'
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- '*-551'
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- '*-555'
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SELECTION_4:
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ObjectName: '*admin*'
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condition: ((SELECTION_1 and SELECTION_2) and (SELECTION_3 or SELECTION_4))
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falsepositives:
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- if source account name is not an admin then its super suspicious
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id: 35ba1d85-724d-42a3-889f-2e2362bcaf23
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level: high
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logsource:
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definition: 'Requirements: enable Object Access SAM on your Domain Controllers'
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product: windows
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service: security
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modified: 2021/09/08
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references:
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- https://blog.menasec.net/2019/02/threat-hunting-5-detecting-enumeration.html
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status: experimental
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tags:
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- attack.discovery
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- attack.t1087
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- attack.t1087.002
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ruletype: SIGMA
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