Sigma rule: Potential Suspicious Child Process Of 3CXDesktopApp

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-ba6a7a42ca52, updated 2023-03-29T00:00:00.000Z.

Rule

Title
Potential Suspicious Child Process Of 3CXDesktopApp
Status
test
Level
high
Author
Nasreddine Bencherchali (Nextron Systems)
Date
2023-03-29
File
rules-emerging-threats/2023/TA/3CX-Supply-Chain/proc_creation_win_malware_3cx_compromise_susp_children.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects potential suspicious child processes of "3CXDesktopApp.exe". Which could be related to the 3CXDesktopApp supply chain compromise

Log source

product
windows
category
process_creation

Detection

selection:
    ParentImage|endswith: '\3CXDesktopApp.exe'
    Image|endswith:
        - '\cmd.exe'
        - '\cscript.exe'
        - '\mshta.exe'
        - '\powershell.exe'
        - '\pwsh.exe'
        - '\regsvr32.exe'
        - '\rundll32.exe'
        - '\wscript.exe'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.command-and-control
  • attack.execution
  • attack.stealth
  • attack.t1218
  • detection.emerging-threats

MITRE ATT&CK ids this rule names

Related rules

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-emerging-threats/2023/TA/3CX-Supply-Chain/proc_creation_win_malware_3cx_compromise_susp_children.yml

Sources and licences

  • SigmaHQ

    "Potential Suspicious Child Process Of 3CXDesktopApp" by Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2023/TA/3CX-Supply-Chain/proc_creation_win_malware_3cx_compromise_susp_children.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 Suspicious Child Process Of 3CXDesktopApp",
entity page, dataset version ref-ba6a7a42ca52, updated 2023-03-29T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/63f3605b-979f-48c2-b7cc-7f90523fed88 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 63f3605b-979f-48c2-b7cc-7f90523fed88, 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.