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:

  • auditbeat-*
  • filebeat-*
  • packetbeat-*
  • logs-endpoint.events.*

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



  • Elastic
  • Network
  • Threat Detection
  • Command and Control
  • Host

Version: 6

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.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