MediumSigmaHQ Nasreddine Bencherchali (Nextron Systems)

Potentially Suspicious Windows App Activity

Detects potentially suspicious child process of applications launched from inside the WindowsApps directory. This could be a sign of a rogue ".appx" package installation/execution

Detection logic

Detection requirements

Log source product: windows
Log source category: process_creation

Known benign triggers

Legitimate packages that make use of external binaries such as Windows Terminal

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
news.sophos.com/en-us/2021/11/11/bazarloader-call-me-back-attack-abuses-windows-10-apps-mechanism/	Threat report	6
www.sentinelone.com/labs/inside-malicious-windows-apps-for-malware-deployment/	Security research	9

Detection rules

Potentially Suspicious Windows App Activity

Detection logic

Detection requirements

Known benign triggers

MITRE ATT&CK mappings

References

From the source

Licence

Authorship

Detection rules