IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

« Modification or Removal of an Okta Application Sign-On Policy Suspicious Network Activity to the Internet by Previously Unknown Executable »

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Deprecated - Potential DNS Tunneling via Iodine

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Deprecated - Potential DNS Tunneling via Iodine

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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-*
logs-endpoint.events.*
endgame-*

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

References:

https://code.kryo.se/iodine/

Tags:

Domain: Endpoint
OS: Linux
Use Case: Threat Detection
Tactic: Command and Control
Data Source: Elastic Endgame
Data Source: Elastic Defend

Version: 105

Rule authors:

Elastic

Rule license: Elastic License v2

Investigation guide

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This rule was deprecated due to its addition to the umbrella `Potential Linux Tunneling and/or Port Forwarding` (6ee947e9-de7e-4281-a55d-09289bdf947e) rule.

Rule query

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event.category:process and host.os.type:linux and event.type:(start or process_started) and process.name:(iodine or iodined)

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Command and Control
- ID: TA0011
- Reference URL: https://attack.mitre.org/tactics/TA0011/
Technique:
- Name: Protocol Tunneling
- ID: T1572
- Reference URL: https://attack.mitre.org/techniques/T1572/

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