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MediumSigmaHQ Nasreddine Bencherchali (Nextron Systems)

Unsigned AppX Installation Attempt Using Add-AppxPackage - PsScript

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: ps_script

Known benign triggers

Installation of unsigned packages for testing purposes

References

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
learn.microsoft.com/en-us/windows/msix/package/unsigned-package	Product documentation	4from 2 sources
twitter.com/WindowsDocs/status/1620078135080325122	Social post	3from 2 sources

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