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HighMicrosoft Sentinel analytics

Network Port Sweep from External Network (ASIM Network Session schema)

This detection rule detects scenarios when a particular port is being scanned by multiple external sources. The rule utilize [ASIM](https://aka.ms/AboutASIM) normalization, and is applied to any source which supports…

Description

This detection rule detects scenarios when a particular port is being scanned by multiple external sources. The rule utilize [ASIM](https://aka.ms/AboutASIM) normalization, and is applied to any source which supports the ASIM Network Session schema.

Detection logic

Detection requirements

Platform
ContainersIaaSLinuxmacOSNetwork DevicesPREWindows

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

Log source product
aivectrastreamawss3azurefirewallazuremonitor_vminsightsazurensgcheckpointciscoasaciscoasaamaciscomerakicorelightfortinetmicrosoftsysmonforlinuxmicrosoftthreatprotectionpaloaltonetworkssecurityeventswindowsforwardedeventswindowssecurityeventszscaler
Log source service
awsvpcflowazurediagnosticsciscomerakinativepollercommonsecuritylogcorelight_cldevicenetworkeventssecurityeventsyslogvectrastreamvmconnectionwindowsevent

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