Tailscale Premium: Unexpected exit-node egress

Identifies when a node sends traffic via an exit node not used in the prior 7-day baseline. First-seen exit destinations from a node may indicate routing-policy drift, data exfiltration, or compromise.

Detection logic

Detection requirements

Platform: ESXi Linux macOS Network Devices Windows
The rule states no platform. This is derived from the 2 ATT&CK techniques it maps to.
Log source product: tailscalepremiumccf
Log source service: tailscale_network_cl

Detections can measure how the public catalogue is used — which detections people look for, and which pages bring them here. It sets a cookie that recognises this browser for 180 days. It is never linked to an account and never follows you to other sites. Privacy notice

Detection rules

Tailscale Premium: Unexpected exit-node egress

Detection logic

Detection requirements

MITRE ATT&CK mappings

From the source

Licence

Authorship

Detection rules