HighSigmaHQ Markus Neis

Outbound RDP Connections Over Non-Standard Tools

Detects Non-Standard tools initiating a connection over port 3389 indicating possible lateral movement. An initial baseline is required before using this utility to exclude third party RDP tooling that you might use.

Detection logic

Detection requirements

Platform: Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: windows
Log source category: network_connection

Known benign triggers

Third party RDP tools

References

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0708	Unclassified	Only this detection cites it

Detection rules

Outbound RDP Connections Over Non-Standard Tools

Detection logic

Detection requirements

Known benign triggers

MITRE ATT&CK mappings

References

From the source

Licence

Authorship

Detection rules