Sigma rule: Chromium Browser Headless Execution To Mockbin Like Site

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-faa6bcd031f2, updated 2023-09-11T00:00:00.000Z.

Rule

Title
Chromium Browser Headless Execution To Mockbin Like Site
Status
test
Level
high
Author
X__Junior (Nextron Systems)
Date
2023-09-11
File
rules/windows/process_creation/proc_creation_win_browsers_chromium_mockbin_abuse.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the execution of a Chromium based browser process with the "headless" flag and a URL pointing to the mockbin.org service (which can be used to exfiltrate data).

Log source

product
windows
category
process_creation

Detection

selection_img:
    Image|endswith:
        - '\brave.exe'
        - '\chrome.exe'
        - '\msedge.exe'
        - '\opera.exe'
        - '\vivaldi.exe'
selection_headless:
    CommandLine|contains: '--headless'
selection_url:
    CommandLine|contains:
        - '://run.mocky'
        - '://mockbin'
condition: all of selection_*

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.execution

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_browsers_chromium_mockbin_abuse.yml

Sources and licences

  • SigmaHQ

    "Chromium Browser Headless Execution To Mockbin Like Site" by X__Junior (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_browsers_chromium_mockbin_abuse.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: Chromium Browser Headless Execution To Mockbin Like Site",
entity page, dataset version ref-faa6bcd031f2, updated 2023-09-11T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/1c526788-0abe-4713-862f-b520da5e5316 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 1c526788-0abe-4713-862f-b520da5e5316, 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.