Sigma rule: Potential Compromised 3CXDesktopApp Update Activity

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-ca743f331486, updated 2023-03-29T00:00:00.000Z.

Rule

Title
Potential Compromised 3CXDesktopApp Update Activity
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_update.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the 3CXDesktopApp updater downloading a known compromised version of the 3CXDesktopApp software

Log source

product
windows
category
process_creation

Detection

selection:
    Image|endswith: '\3CXDesktopApp\app\update.exe'
    CommandLine|contains|all:
        - '--update'
        - 'http'
        - '/electron/update/win32/18.12'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.stealth
  • attack.t1218
  • attack.execution
  • 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_update.yml

Sources and licences

  • SigmaHQ

    "Potential Compromised 3CXDesktopApp Update Activity" 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_update.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 Compromised 3CXDesktopApp Update Activity",
entity page, dataset version ref-ca743f331486, updated 2023-03-29T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/e7581747-1e44-4d4b-85a6-0db0b4a00f2a (accessed 2026-11-03).
Underlying source: SigmaHQ rule e7581747-1e44-4d4b-85a6-0db0b4a00f2a, 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.