SigmaHQ/rules/windows/sysmon/sysmon_rdp_settings_hijack.yml
2019-04-03 14:16:25 +02:00

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YAML

title: RDP Sensitive Settings Changed
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
author: Samir Bousseaden
logsource:
product: windows
service: sysmon
detection:
selection_reg:
EventID: 13
TargetObject:
- '*\services\TermService\Parameters\ServiceDll*'
- '*\Control\Terminal Server\fSingleSessionPerUser*'
- '*\Control\Terminal Server\fDenyTSConnections*'
condition: selection_reg
tags:
- attack.defense_evasion
falsepositives:
- unknown
level: high