sigmahighHunting

Terminal Server Client Connection History Cleared - Registry

Detects the deletion of registry keys containing the MSTSC connection history

MITRE ATT&CK

persistencedefense-evasion

Detection Query

selection1:
  EventType: DeleteValue
  TargetObject|contains: \Microsoft\Terminal Server Client\Default\MRU
selection2:
  EventType: DeleteKey
  TargetObject|contains: \Microsoft\Terminal Server Client\Servers\
condition: 1 of selection*

Author

Christian Burkard (Nextron Systems)

Created

2021-10-19

Data Sources

windowsRegistry Delete Events

Platforms

windows

References

Tags

attack.persistenceattack.defense-evasionattack.t1070attack.t1112

Raw Content

title: Terminal Server Client Connection History Cleared - Registry
id: 07bdd2f5-9c58-4f38-aec8-e101bb79ef8d
status: test
description: Detects the deletion of registry keys containing the MSTSC connection history
references:
    - https://learn.microsoft.com/en-us/troubleshoot/windows-server/remote/remove-entries-from-remote-desktop-connection-computer
    - http://woshub.com/how-to-clear-rdp-connections-history/
    - https://www.trendmicro.com/en_us/research/23/a/vice-society-ransomware-group-targets-manufacturing-companies.html
author: Christian Burkard (Nextron Systems)
date: 2021-10-19
modified: 2023-02-08
tags:
    - attack.persistence
    - attack.defense-evasion
    - attack.t1070
    - attack.t1112
logsource:
    category: registry_delete
    product: windows
detection:
    selection1:
        EventType: DeleteValue
        TargetObject|contains: '\Microsoft\Terminal Server Client\Default\MRU'
    selection2:
        EventType: DeleteKey
        TargetObject|contains: '\Microsoft\Terminal Server Client\Servers\'
    condition: 1 of selection*
falsepositives:
    - Unknown
level: high