Terminal Server Client Connection History Cleared - Registry

calendar Apr 28, 2026 · attack.persistence attack.stealth attack.defense-impairment attack.t1070 attack.t1112  ·
Share on: linkedin copy

Detects the deletion of registry keys containing the MSTSC connection history

Sigma rule (View on GitHub)

 1title: Terminal Server Client Connection History Cleared - Registry
 2id: 07bdd2f5-9c58-4f38-aec8-e101bb79ef8d
 3status: test
 4description: Detects the deletion of registry keys containing the MSTSC connection history
 5references:
 6    - https://learn.microsoft.com/en-us/troubleshoot/windows-server/remote/remove-entries-from-remote-desktop-connection-computer
 7    - http://woshub.com/how-to-clear-rdp-connections-history/
 8    - https://www.trendmicro.com/en_us/research/23/a/vice-society-ransomware-group-targets-manufacturing-companies.html
 9author: Christian Burkard (Nextron Systems)
10date: 2021-10-19
11modified: 2023-02-08
12tags:
13    - attack.persistence
14    - attack.stealth
15    - attack.defense-impairment
16    - attack.t1070
17    - attack.t1112
18logsource:
19    category: registry_delete
20    product: windows
21detection:
22    selection1:
23        EventType: DeleteValue
24        TargetObject|contains: '\Microsoft\Terminal Server Client\Default\MRU'
25    selection2:
26        EventType: DeleteKey
27        TargetObject|contains: '\Microsoft\Terminal Server Client\Servers\'
28    condition: 1 of selection*
29falsepositives:
30    - Unknown
31level: high

References

Related rules

to-top