Sigma rule: ChromeLoader Malware Execution

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-ea6b37637086, updated 2022-01-10T00:00:00.000Z.

Rule

Title
ChromeLoader Malware Execution
Status
test
Level
high
Author
@kostastsale
Date
2022-01-10
File
rules-emerging-threats/2022/Malware/ChromeLoader/proc_creation_win_malware_chrome_loader_execution.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects execution of ChromeLoader malware via a registered scheduled task

Log source

product
windows
category
process_creation

Detection

selection:
    ParentImage|endswith: '\powershell.exe'
    ParentCommandLine|contains: '-ExecutionPolicy Bypass -WindowStyle Hidden -E JAB'
    CommandLine|contains: '--load-extension="*\Appdata\local\chrome"'
    Image|endswith: '\chrome.exe'
condition: selection

False positives (as the rule lists them)

  • Unlikely

Tags

  • attack.privilege-escalation
  • attack.execution
  • attack.persistence
  • attack.t1053.005
  • attack.t1059.001
  • attack.t1176
  • detection.emerging-threats

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/2022/Malware/ChromeLoader/proc_creation_win_malware_chrome_loader_execution.yml

Sources and licences

  • SigmaHQ

    "ChromeLoader Malware Execution" by @kostastsale (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2022/Malware/ChromeLoader/proc_creation_win_malware_chrome_loader_execution.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: ChromeLoader Malware Execution",
entity page, dataset version ref-ea6b37637086, updated 2022-01-10T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/0a74c5a9-1b71-4475-9af2-7829d320d5c2 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 0a74c5a9-1b71-4475-9af2-7829d320d5c2, 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.