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sigmamediumHunting

DotNET Assembly DLL Loaded Via Office Application

Detects any assembly DLL being loaded by an Office Product

MITRE ATT&CK

T1204.002
execution

Detection Query

selection:
  Image|endswith:
    - \excel.exe
    - \mspub.exe
    - \onenote.exe
    - \onenoteim.exe
    - \outlook.exe
    - \powerpnt.exe
    - \winword.exe
  ImageLoaded|startswith: C:\Windows\assembly\
condition: selection

Author

Antonlovesdnb

Created

2020-02-19

Data Sources

windowsImage Load Events

Platforms

windows

References

Tags

attack.executionattack.t1204.002
Raw Content
title: DotNET Assembly DLL Loaded Via Office Application
id: ff0f2b05-09db-4095-b96d-1b75ca24894a
status: test
description: Detects any assembly DLL being loaded by an Office Product
references:
    - https://medium.com/threatpunter/detecting-adversary-tradecraft-with-image-load-event-logging-and-eql-8de93338c16
author: Antonlovesdnb
date: 2020-02-19
modified: 2023-03-29
tags:
    - attack.execution
    - attack.t1204.002
logsource:
    category: image_load
    product: windows
detection:
    selection:
        Image|endswith:
            - '\excel.exe'
            - '\mspub.exe'
            - '\onenote.exe'
            - '\onenoteim.exe' # Just in case
            - '\outlook.exe'
            - '\powerpnt.exe'
            - '\winword.exe'
        ImageLoaded|startswith: 'C:\Windows\assembly\'
    condition: selection
falsepositives:
    - Unknown
level: medium