Office365 Sharepoint File transfer above threshold

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About the rule

Rule Type

Standard

Rule Description

Detects instances of file transfers in SharePoint or OneDrive that exceed a defined threshold within a short timeframe.

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "DETECTION_ACTION_M365_FILE_TRANSFER" | timewindow 15m | groupby CALLER having COUNT > 1000 select Action1.timewindow.TARGET_NAME,Action1.timewindow.RESOURCE,Action1.timewindow.FILETYPE,Action1.timewindow.TARGET,Action1.timewindow.IPADDRESS,Action1.timewindow.SIZE_I,Action1.timewindow.USERAGENT,Action1.timewindow.CALLER,Action1.timewindow.OPERATION

Detection

Execution Mode

realtime

Log Sources

Microsoft 365