SigmaHQ/rules/windows/registry_event/sysmon_rdp_settings_hijack.yml

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title: RDP Sensitive Settings Changed
id: 171b67e1-74b4-460e-8d55-b331f3e32d67
description: Detects changes to RDP terminal service sensitive settings
references:
- https://blog.menasec.net/2019/02/threat-hunting-rdp-hijacking-via.html
date: 2019/04/03
modified: 2020/09/06
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author: Samir Bousseaden
logsource:
category: registry_event
product: windows
detection:
selection_reg:
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TargetObject|contains:
- '\services\TermService\Parameters\ServiceDll'
- '\Control\Terminal Server\fSingleSessionPerUser'
- '\Control\Terminal Server\fDenyTSConnections'
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condition: selection_reg
tags:
- attack.defense_evasion
- attack.t1112
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falsepositives:
- unknown
level: high