Potential DLL Sideloading Of DbgModel.DLL

Detects potential DLL sideloading of "DbgModel.dll"

Detection logic

selection

ImageLoaded|endswith: \dbgmodel.dll

filter_main_generic

ImageLoaded|startswith:
  - C:\Windows\System32\
  - C:\Windows\SysWOW64\
  - C:\Windows\WinSxS\

filter_optional_windbg

ImageLoaded|startswith: C:\Program Files\WindowsApps\Microsoft.WinDbg_

filter_optional_windows_kits

ImageLoaded|startswith:
  - C:\Program Files (x86)\Windows Kits\
  - C:\Program Files\Windows Kits\

Condition

selection and not 1 of filter_main_* and not 1 of filter_optional_*

Raw YAML

title: Potential DLL Sideloading Of DbgModel.DLL
id: fef394cd-f44d-4040-9b18-95d92fe278c0
status: test
description: Detects potential DLL sideloading of "DbgModel.dll"
references:
    - https://hijacklibs.net/entries/microsoft/built-in/dbgmodel.html
author: Gary Lobermier
date: 2024-07-11
modified: 2024-07-22
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.execution
    - attack.stealth
    - attack.t1574.001
logsource:
    product: windows
    category: image_load
detection:
    selection:
        ImageLoaded|endswith: '\dbgmodel.dll'
    filter_main_generic:
        ImageLoaded|startswith:
            - 'C:\Windows\System32\'
            - 'C:\Windows\SysWOW64\'
            - 'C:\Windows\WinSxS\'
    filter_optional_windbg:
        ImageLoaded|startswith: 'C:\Program Files\WindowsApps\Microsoft.WinDbg_'
    filter_optional_windows_kits:
        ImageLoaded|startswith:
            - 'C:\Program Files (x86)\Windows Kits\'
            - 'C:\Program Files\Windows Kits\'
    condition: selection and not 1 of filter_main_* and not 1 of filter_optional_*
falsepositives:
    - Legitimate applications loading their own versions of the DLL mentioned in this rule
level: medium