Sigma rule: Remote Access Tool - ScreenConnect Server Web Shell Execution

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-063c7a812f68, updated 2024-02-26T00:00:00.000Z.

Rule

Title
Remote Access Tool - ScreenConnect Server Web Shell Execution
Status
test
Level
high
Author
Jason Rathbun (Blackpoint Cyber)
Date
2024-02-26
File
rules/windows/process_creation/proc_creation_win_remote_access_tools_screenconnect_webshell.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects potential web shell execution from the ScreenConnect server process.

Log source

product
windows
category
process_creation

Detection

selection:
    ParentImage|endswith: '\ScreenConnect.Service.exe'
    Image|endswith:
        - '\cmd.exe'
        - '\csc.exe'
condition: selection

False positives (as the rule lists them)

  • Unlikely

Tags

  • attack.initial-access
  • attack.t1190

MITRE ATT&CK ids this rule names

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_remote_access_tools_screenconnect_webshell.yml

Sources and licences

  • SigmaHQ

    "Remote Access Tool - ScreenConnect Server Web Shell Execution" by Jason Rathbun (Blackpoint Cyber) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_remote_access_tools_screenconnect_webshell.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: Remote Access Tool - ScreenConnect Server Web Shell Execution",
entity page, dataset version ref-063c7a812f68, updated 2024-02-26T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/b19146a3-25d4-41b4-928b-1e2a92641b1b (accessed 2026-11-03).
Underlying source: SigmaHQ rule b19146a3-25d4-41b4-928b-1e2a92641b1b, 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.