Sigma rule: Potential RDP Session Hijacking Activity

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-f0c32f22b6c8, updated 2024-12-01T00:00:00.000Z.

Rule

Title
Potential RDP Session Hijacking Activity
Status
test
Level
medium
Author
@juju4
Date
2022-12-27
Modified
2024-12-01
File
rules/windows/process_creation/proc_creation_win_tscon_rdp_session_hijacking.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects potential RDP Session Hijacking activity on Windows systems

Log source

product
windows
category
process_creation

Detection

selection_img:
    - Image|endswith: '\tscon.exe'
    - OriginalFileName: 'tscon.exe'
selection_integrity:
    IntegrityLevel:
        - 'System'
        - 'S-1-16-16384'
condition: all of selection_*

False positives (as the rule lists them)

  • Administrative activity

Tags

  • attack.execution

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_tscon_rdp_session_hijacking.yml

Sources and licences

  • SigmaHQ

    "Potential RDP Session Hijacking Activity" by @juju4 (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_tscon_rdp_session_hijacking.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Potential RDP Session Hijacking Activity",
entity page, dataset version ref-f0c32f22b6c8, updated 2024-12-01T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/224f140f-3553-4cd1-af78-13d81bf9f7cc (accessed 2026-11-03).
Underlying source: SigmaHQ rule 224f140f-3553-4cd1-af78-13d81bf9f7cc, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.