Possible Arbitrary DLL Load Via Winword (via process_creation)

title: Possible Arbitrary DLL Load Via Winword (via process_creation)
id: 0fb3fe55-ffc5-5798-9146-b492dd6a90da
status: stable
description: This rule detects potential DLL sideloading using the Microsoft Office winword process via the '/l' flag.
references:
    - https://attack.mitre.org/techniques/T1202/
    - https://github.com/D4Vinci/One-Lin3r/blob/9fdfa5f0b9c698dfbd4cdfe7d2473192777ae1c6/one_lin3r/core/liners/windows/cmd/dll_loader_word.py
author: Huntrule Team
date: 2026-03-11
tags:
    - attack.stealth
    - attack.t1202
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\WINWORD.exe'
        - OriginalFileName: 'WinWord.exe'
    selection_dll:
        CommandLine|contains|all:
            - '/l '
            - '.dll'
    condition: all of selection_*
falsepositives:
    - Unknown
level: medium