Files uploaded to teams and access summary

This hunting queries identifies files uploaded to SharePoint via a Teams chat and summarizes users and IP addresses that have accessed these files. This allows for identification of anomolous file sharing patterns.

Detection logic

Detection requirements

Platform: Containers ESXi IaaS Identity Provider Linux macOS Network Devices Office Suite SaaS Windows
The rule states no platform. This is derived from the 3 ATT&CK techniques it maps to.
Log source product: office365
Log source service: officeactivity_sharepoint

Detection rules

Files uploaded to teams and access summary

Detection logic

Detection requirements

MITRE ATT&CK mappings

From the source

Licence

Authorship

Detection rules