Winget Admin Settings Modification

Description

Detects changes to the AppInstaller (winget) admin settings. Such as enabling local manifest installations or disabling installer hash checks

Query · sigma

selection:
  Image|endswith: \winget.exe
  TargetObject|startswith: \REGISTRY\A\
  TargetObject|endswith: \LocalState\admin_settings
condition: selection

Known false positives

  • The event doesn't contain information about the type of change. False positives are expected with legitimate changes
Raw source Winget Admin Settings Modification · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: Winget Admin Settings Modification
id: 6db5eaf9-88f7-4ed9-af7d-9ef2ad12f236
status: test
description: Detects changes to the AppInstaller (winget) admin settings. Such as enabling local manifest installations or disabling installer hash checks
references:
    - https://github.com/nasbench/Misc-Research/tree/b9596e8109dcdb16ec353f316678927e507a5b8d/LOLBINs/Winget
    - https://github.com/microsoft/winget-cli/blob/02d2f93807c9851d73eaacb4d8811a76b64b7b01/src/AppInstallerCommonCore/Public/winget/AdminSettings.h#L13
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-04-17
modified: 2023-08-17
tags:
    - attack.persistence
    - attack.defense-impairment
logsource:
    product: windows
    category: registry_set
detection:
    selection:
        Image|endswith: '\winget.exe'
        TargetObject|startswith: '\REGISTRY\A\'
        TargetObject|endswith: '\LocalState\admin_settings'
    condition: selection
falsepositives:
    - The event doesn't contain information about the type of change. False positives are expected with legitimate changes
level: low

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