Unsigned AppX Installation Attempt Using Add-AppxPackage
Detects usage of the "Add-AppxPackage" or it's alias "Add-AppPackage" to install unsigned AppX packages
Detection logic
Detection requirements
- Log source product
- windows
- Log source category
- process_creation
Known benign triggers
- Installation of unsigned packages for testing purposes
MITRE ATT&CK mappings
Not mapped to ATT&CK.
References
| Reference | Cited by |
|---|---|
| learn.microsoft.com/en-us/windows/msix/package/unsigned-package | 4from 2 sources |
| twitter.com/WindowsDocs/status/1620078135080325122 | 3from 2 sources |
From the source
- At source
- Open at source
- Upstream identifier
- 37651c2a-42cd-4a69-ae0d-22a4349aa04a
- Tagged by the source as
- attack.persistenceattack.stealth
Licence
- Published under
- Detection Rule License 1.1Read the licence
- Attribution
- Required
Authorship
- Published
- Aug 26, 2026
- Version
- 1