Potential DNS Tunneling via Iodineedit

Iodine is a tool for tunneling Internet protocol version 4 (IPV4) traffic over the DNS protocol to circumvent firewalls, network security groups, and network access lists while evading detection.

Rule type: query

Rule indices:

  • auditbeat-*

Severity: high

Risk score: 73

Runs every: 5 minutes

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

Maximum signals per execution: 100



  • Elastic
  • Linux

Version: 2 (version history)

Added (Elastic Stack release): 7.6.0

Last modified (Elastic Stack release): 7.7.0

Potential false positivesedit

Normal use of Iodine is uncommon apart from security testing and research. Use by non-security engineers is very uncommon.

Rule queryedit

process.name:(iodine or iodined) and event.action:executed

Rule version historyedit

Version 2 (7.7.0 release)

Updated query, changed from:

process.name: (iodine or iodined) and event.action:executed