Halfbaked Command and Control Beaconedit

Halfbaked is a malware family used to establish persistence in a contested network. This rule detects a network activity algorithm leveraged by Halfbaked implant beacons for command and control.

Rule type: query

Rule indices:

  • packetbeat-*

Severity: high

Risk score: 73

Runs every: 5 minutes

Searches indices from: now-6m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100



  • Elastic
  • Network
  • Threat Detection
  • Command and Control

Version: 3 (version history)

Added (Elastic Stack release): 7.10.0

Last modified (Elastic Stack release): 7.11.2

Rule authors: Elastic

Rule license: Elastic License

Potential false positivesedit

This rule should be tailored to exclude systems, either as sources or destinations, in which this behavior is expected.

Investigation guideedit

This activity has been observed in FIN7 campaigns.

Rule queryedit

event.category:(network OR network_traffic) AND network.protocol:http
AND network.transport:tcp AND
AND destination.port:(53 OR 80 OR 8080 OR 443)

Threat mappingedit


Rule version historyedit

Version 3 (7.11.2 release)
  • Formatting only
Version 2 (7.11.0 release)
  • Formatting only