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MediumMicrosoft Sentinel analytics

AD FS Remote HTTP Network Connection

This detection uses Sysmon events (NetworkConnect events) to detect incoming network traffic on port 80 on AD FS servers. This could be a sign of a threat actor trying to use replication services on the AD FS server…

Description

This detection uses Sysmon events (NetworkConnect events) to detect incoming network traffic on port 80 on AD FS servers. This could be a sign of a threat actor trying to use replication services on the AD FS server to get its configuration settings and extract sensitive information such as AD FS certificates. In order to use this query you need to enable Sysmon telemetry on the AD FS Server. Reference: https://twitter.com/OTR_Community/status/1387038995016732672

Detection logic

Detection requirements

Platform
ESXiLinuxmacOSNetwork DevicesWindows

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

Log source product
securityeventswindowssecurityevents
Log source service
securityevent

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