Classification:

attack

VIEW RULE IN DATADOG VIEW SIGNALS

Set up the zeek integration.

Goal

Detect the SSH watched country login notice.

Strategy

This rule monitors Zeek logs for the notice SSH::Watched_Country_Login. The notice is generated if an SSH login is seen originating to or from a “watched” country based on the SSH::watched_countries variable.

Triage and response

1. Identify the owners of the host that has been accessed.
2. Work with the team to understand if this authentication was expected/legitimate.
3. If it is determined that the activity is malicious:
   • Block the IP address, if it aligns with organization incident response processes.
   • Begin your organization’s incident response process and investigate.