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UnknownMicrosoft Sentinel analytics

Empty User Agent Detected (ASIM Web Session)

This rule helps to identify instances of empty user agent requests originating from IP addresses that have previously reported user agent at least once within the same time period.

Detection logic

Detection requirements

Platform
ContainersESXiIaaSLinuxmacOSNetwork DevicesWindows

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

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