Detection rules › Sigma
Winget Admin Settings Modification
Detects changes to the AppInstaller (winget) admin settings. Such as enabling local manifest installations or disabling installer hash checks
Known false positives
- The event doesn't contain information about the type of change. False positives are expected with legitimate changes
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Persistence | No specific technique |
| Defense Impairment | No specific technique |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 13: RegistryEvent (Value Set) |
Rule body
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
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
Image|endswith: '\winget.exe'
TargetObject|startswith: '\REGISTRY\A\'
TargetObject|endswith: '\LocalState\admin_settings'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
Image | ends_with |
| field:"Image" kind:ends_with value:"\winget.exe" |
TargetObject | ends_with |
| field:"TargetObject" kind:ends_with value:"\LocalState\admin_settings" |
TargetObject | starts_with |
| field:"TargetObject" kind:starts_with value:"\REGISTRY\A\" |