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MediumMicrosoft Sentinel analyticsMicrosoft Security Research

Azure VM Run Command operations executing a unique PowerShell script

Identifies when Azure Run command is used to execute a PowerShell script on a VM that is unique. The uniqueness of the PowerShell script is determined by taking a combined hash of the cmdLets it imports and the file…

Description

Identifies when Azure Run command is used to execute a PowerShell script on a VM that is unique. The uniqueness of the PowerShell script is determined by taking a combined hash of the cmdLets it imports and the file size of the PowerShell script. Alerts from this detection indicate a unique PowerShell was executed in your environment.

Detection logic

Detection requirements

Platform
ESXiLinuxmacOSWindows

The rule states no platform. This is derived from the 2 ATT&CK techniques it maps to.

Log source product
azureactivitymicrosoftthreatprotection
Log source service
azureactivitydeviceeventsdevicefileevents

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