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LowMicrosoft Sentinel analytics

Detect requests for an uncommon resources on the web (ASIM Web Session)

This detection mechanism examines connections made to a domain where only a single file is requested, which is considered unusual since most contemporary web applications require additional resources. Such activity…

Description

This detection mechanism examines connections made to a domain where only a single file is requested, which is considered unusual since most contemporary web applications require additional resources. Such activity is often associated with malware beaconing or tracking URLs delivered via emails. The query includes a sample set of popular web script extensions (scriptExtensions), which should be customized to align with the specific requirements of your environment

Detection logic

Detection requirements

Platform
ESXiLinuxmacOSNetwork DevicesWindows

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

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