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MediumSplunk security contentMauricio Velazco +1

Windows Rapid Authentication On Multiple Hosts

The following analytic detects a source computer authenticating to 30 or more remote endpoints within a 5-minute timespan using Event ID 4624. This behavior is identified by analyzing Windows Event Logs for LogonType…

Description

The following analytic detects a source computer authenticating to 30 or more remote endpoints within a 5-minute timespan using Event ID 4624. This behavior is identified by analyzing Windows Event Logs for LogonType 3 events and counting unique target computers. Such activity is significant as it may indicate lateral movement or network share enumeration by an adversary. If confirmed malicious, this could lead to unauthorized access to multiple systems, potentially compromising sensitive data and escalating privileges within the network.

Detection logic

Detection requirements

Platform
Windows

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

Log source category
windows_event_log_security_4624

Known benign triggers

  • Vulnerability scanners or system administration tools may also trigger this detection. Filter as needed.

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