Detectionmediumtest
DotNET Assembly DLL Loaded Via Office Application
Detects any assembly DLL being loaded by an Office Product
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Log Source
WindowsImage Load (DLL)
ProductWindows← raw: windows
CategoryImage Load (DLL)← raw: image_load
Detection Logic
Detection Logic1 selector
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: selectionFalse Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
References
MITRE ATT&CK
Tactics
Sub-techniques
Rule Metadata
Rule ID
ff0f2b05-09db-4095-b96d-1b75ca24894a
Status
test
Level
medium
Type
Detection
Created
Wed Feb 19
Modified
Wed Mar 29
Author
Path
rules/windows/image_load/image_load_office_dotnet_assembly_dll_load.yml
Raw Tags
attack.executionattack.t1204.002