Sigma rule: CVE-2024-50623 Exploitation Attempt - Cleo

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-10dfd402d132, updated 2024-12-09T00:00:00.000Z.

Rule

Title
CVE-2024-50623 Exploitation Attempt - Cleo
Status
experimental
Level
high
Author
Tanner Filip, Austin Worline, Chad Hudson, Matt Anderson
Date
2024-12-09
File
rules-emerging-threats/2024/Exploits/CVE-2024-50623/proc_creation_win_exploit_cve_2024_50623_cleo.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects exploitation attempt of Cleo's CVE-2024-50623 by looking for a "cmd.exe" process spawning from the Celo software suite with suspicious Powershell commandline.

Log source

product
windows
category
process_creation

Detection

selection:
    ParentImage|endswith: '\javaw.exe'
    ParentCommandLine|contains:
        - 'Harmony'
        - 'lexicom'
        - 'VersaLex'
        - 'VLTrader'
    Image|endswith: '\cmd.exe'
    CommandLine|contains:
        - 'powershell'
        - ' -enc '
        - ' -EncodedCommand'
        - '.Download'
condition: selection

False positives (as the rule lists them)

  • Unlikely

Tags

  • attack.initial-access
  • attack.execution
  • attack.t1190
  • cve.2024-50623
  • detection.emerging-threats

CVEs this rule names

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-emerging-threats/2024/Exploits/CVE-2024-50623/proc_creation_win_exploit_cve_2024_50623_cleo.yml

Sources and licences

  • SigmaHQ

    "CVE-2024-50623 Exploitation Attempt - Cleo" by Tanner Filip, Austin Worline, Chad Hudson, Matt Anderson (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2024/Exploits/CVE-2024-50623/proc_creation_win_exploit_cve_2024_50623_cleo.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: CVE-2024-50623 Exploitation Attempt - Cleo",
entity page, dataset version ref-10dfd402d132, updated 2024-12-09T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/f007b877-02e3-45b7-8501-1b78c2864029 (accessed 2026-11-03).
Underlying source: SigmaHQ rule f007b877-02e3-45b7-8501-1b78c2864029, 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.