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29 lines
1.2 KiB
YAML
29 lines
1.2 KiB
YAML
title: Powerview Add-DomainObjectAcl DCSync AD Extend Right
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id: 2c99737c-585d-4431-b61a-c911d86ff32f
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description: backdooring domain object to grant the rights associated with DCSync to a regular user or machine account using Powerview\Add-DomainObjectAcl DCSync
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Extended Right cmdlet, will allow to re-obtain the pwd hashes of any user/computer
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status: experimental
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date: 2019/04/03
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author: Samir Bousseaden; Roberto Rodriguez @Cyb3rWard0g; oscd.community
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references:
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- https://twitter.com/menasec1/status/1111556090137903104
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- https://www.specterops.io/assets/resources/an_ace_up_the_sleeve.pdf
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tags:
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- attack.credential_access
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- attack.persistence
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logsource:
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product: windows
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service: security
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detection:
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selection:
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EventID: 5136
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LDAPDisplayName: 'ntSecurityDescriptor'
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Value|contains:
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- '1131f6ad-9c07-11d1-f79f-00c04fc2dcd2'
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- '1131f6aa-9c07-11d1-f79f-00c04fc2dcd2'
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- '89e95b76-444d-4c62-991a-0facbeda640c'
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condition: selection
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falsepositives:
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- New Domain Controller computer account, check user SIDs witin the value attribute of event 5136 and verify if it's a regular user or DC computer account.
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level: critical
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