Suspicious AppX Package Locations

SigmaHQ Detections@sigmaHQ

•updated Aug 12, 2024•0•25

This rule detects the creation or modification of AppX packages in suspicious file system locations. Adversaries may place malicious AppX packages in common temporary or public directories to evade detection or achieve persistence. The rule specifically looks for Event ID 854 from the 'appxdeployment-server' service, indicating an AppX package being added to the processing pipeline, and checks if the package's path contains known suspicious locations such as public user directories, temporary folders, or desktop/downloads folders.