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MediumMicrosoft Sentinel analyticsMicrosoft Security Research

Mass Download & copy to USB device by single user

This query looks for any mass download by a single user with possible file copy activity to a new USB drive. Malicious insiders may perform such activities that may cause harm to the organization. This query could…

Description

This query looks for any mass download by a single user with possible file copy activity to a new USB drive. Malicious insiders may perform such activities that may cause harm to the organization. This query could also reveal unintentional insider that had no intention of malicious activity but their actions may impact an organizations security posture. Reference:https://docs.microsoft.com/defender-cloud-apps/policy-template-reference

Detection logic

Detection requirements

Platform
LinuxmacOSWindows

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source product
microsoftcloudappsecuritymicrosoftthreatprotection
Log source service
cloudappeventsdeviceeventsdevicefileeventssecurityalert

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