Potential Persistence Via AppCompat RegisterAppRestart Layer

title: Potential Persistence Via AppCompat RegisterAppRestart Layer
id: b86852fb-4c77-48f9-8519-eb1b2c308b59
status: test
description: |
    Detects the setting of the REGISTERAPPRESTART compatibility layer on an application.
    This compatibility layer allows an application to register for restart using the "RegisterApplicationRestart" API.
    This can be potentially abused as a persistence mechanism.
references:
    - https://github.com/nasbench/Misc-Research/blob/d114d6a5e0a437d3818e492ef9864367152543e7/Other/Persistence-Via-RegisterAppRestart-Shim.md
author: Nasreddine Bencherchali (Nextron Systems)
date: 2024-01-01
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.t1546.011
logsource:
    category: registry_set
    product: windows
detection:
    selection:
        TargetObject|contains: '\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers\'
        Details|contains: 'REGISTERAPPRESTART'
    condition: selection
falsepositives:
    - Legitimate applications making use of this feature for compatibility reasons
level: medium