Classification:

attack

VIEW RULE IN DATADOG VIEW SIGNALS

Set up the tailscale integration.

Goal

Detect when a Tailscale API access token has been created.

Strategy

This rule monitors Tailscale logs for when an API access token has been created. An attacker may create an API access token to maintain unauthorized access to the environment. This rule detects the creation of:

• API keys
• Auth keys
• OAuth client credentials

Triage and response

1. Investigate the user {{@usr.email}} that created the API Key {{@target.id}}.
2. Investigate the {{@new.capabilities}} details to determine the scope of permissions that the created API Key has and if it should have those permissions.
3. If the activity is deemed malicious:
   • Begin your organization’s incident response process and investigate.