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LowMicrosoft Sentinel analytics

Potential beaconing activity (ASIM Network Session schema)

This rule identifies beaconing patterns from Network traffic logs based on recurrent frequency patterns. Such potential outbound beaconing patterns to untrusted public networks should be investigated for any malware…

Description

This rule identifies beaconing patterns from Network traffic logs based on recurrent frequency patterns. Such potential outbound beaconing patterns to untrusted public networks should be investigated for any malware callbacks or data exfiltration attempts as discussed in this [Blog](https://medium.com/@HuntOperator/detect-beaconing-with-flare-elastic-stack-and-intrusion-detection-systems-110dc74e0c56). This analytic rule uses [ASIM](https://aka.ms/AboutASIM) and supports any built-in or custom source that supports the ASIM NetworkSession schema'

Detection logic

Detection requirements

Platform
ESXiLinuxmacOSNetwork DevicesWindows

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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