Chromium Browser Headless Execution To Mockbin Like Site

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About the rule

Rule Type

Standard

Rule Description

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).

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND PROCESSNAME endswith "\brave.exe,\chrome.exe,\msedge.exe,\opera.exe,\vivaldi.exe" AND COMMANDLINE contains "--headless" AND COMMANDLINE contains "://run.mocky,://mockbin" select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

X__Junior (Nextron Systems)