Possible FIN7 DGA Command and Control Behavioredit

This rule detects a known command and control pattern in network events. The FIN7 threat group is known to use this command and control technique, while maintaining persistence in their target’s network.

Rule type: query

Rule indices:

  • packetbeat-*
  • auditbeat-*
  • filebeat-*
  • logs-network_traffic.*

Severity: high

Risk score: 73

Runs every: 5m

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100



  • Use Case: Threat Detection
  • Tactic: Command and Control
  • Domain: Endpoint

Version: 105

Rule authors:

  • Elastic

Rule license: Elastic License v2

Investigation guideedit

Triage and analysis

In the event this rule identifies benign domains in your environment, the destination.domain field in the rule can be modified to include those domains. Example: ...AND NOT destination.domain:(zoom.us OR benign.domain1 OR benign.domain2).

Rule queryedit

(event.dataset: (network_traffic.tls OR network_traffic.http) OR
    (event.category: (network OR network_traffic) AND type: (tls OR http) AND network.transport: tcp)) AND
destination.domain:/[a-zA-Z]{4,5}\.(pw|us|club|info|site|top)/ AND NOT destination.domain:zoom.us