Potential DLL Sideloading Of DbgModel.DLL

Title: Potential DLL Sideloading Of DbgModel.DLL
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