Possible Chrome Frame Helper DLL Sideloading (via image_load)

title: Possible Chrome Frame Helper DLL Sideloading (via image_load)
id: 324b1586-c846-54a4-ba89-76c87824b317
status: stable
description: This rule detects potential DLL sideloading of "chrome_frame_helper.dll"
references:
    - https://attack.mitre.org/techniques/T1574/001/
    - https://hijacklibs.net/entries/3rd_party/google/chrome_frame_helper.html
author: Huntrule Team
date: 2026-04-28
tags:
    - attack.persistence
    - attack.privilege-escalation
    - attack.execution
    - attack.stealth
    - attack.t1574.001
logsource:
    category: image_load
    product: windows
detection:
    selection:
        ImageLoaded|endswith: '\chrome_frame_helper.dll'
    filter_main_path:
        ImageLoaded|startswith:
            - 'C:\Program Files\Google\Chrome\Application\'
            - 'C:\Program Files (x86)\Google\Chrome\Application\'
    filter_optional_user_path:
        ImageLoaded|contains: '\AppData\local\Google\Chrome\Application\'
    condition: selection and not 1 of filter_main_* and not 1 of filter_optional_*
falsepositives:
    - Unknown
level: medium