sigmaDRL-1.1from SigmaHQ/sigma

Potential DLL Sideloading Via DeviceEnroller.EXE

Detects the use of the PhoneDeepLink parameter to potentially sideload a DLL file that does not exist. This non-existent DLL file is named "ShellChromeAPI.dll". Adversaries can drop their own renamed DLL and execute it via DeviceEnroller.exe using this parameter

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ATT&CK techniques

T1574.001

Rule sourcerules/windows/process_creation/proc_creation_win_deviceenroller_dll_sideloading.yml

title: Potential DLL Sideloading Via DeviceEnroller.EXE
id: e173ad47-4388-4012-ae62-bd13f71c18a8
related:
    - id: ee4c5d06-3abc-48cc-8885-77f1c20f4451
      type: similar
status: test
description: |
    Detects the use of the PhoneDeepLink parameter to potentially sideload a DLL file that does not exist. This non-existent DLL file is named "ShellChromeAPI.dll".
    Adversaries can drop their own renamed DLL and execute it via DeviceEnroller.exe using this parameter
references:
    - https://mobile.twitter.com/0gtweet/status/1564131230941122561
    - https://strontic.github.io/xcyclopedia/library/DeviceEnroller.exe-24BEF0D6B0ECED36BB41831759FDE18D.html
author: '@gott_cyber'
date: 2022-08-29
modified: 2023-02-04
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.defense-evasion
    - attack.t1574.001
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\deviceenroller.exe'
        - OriginalFileName: 'deviceenroller.exe'
    selection_cli:
        CommandLine|contains: '/PhoneDeepLink'
    condition: all of selection_*
falsepositives:
    - Unknown
level: medium