[metadata]
creation_date = "2020/02/18"
ecs_version = ["1.4.0"]
maturity = "production"
updated_date = "2020/02/18"

[rule]
author = ["Elastic"]
description = """
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.
"""
false_positives = [
    """
    Normal use of Iodine is uncommon apart from security testing and research. Use by non-security engineers is very
    uncommon.
    """,
]
index = ["auditbeat-*"]
language = "kuery"
license = "Elastic License"
name = "Potential DNS Tunneling via Iodine"
references = ["https://code.kryo.se/iodine/"]
risk_score = 73
rule_id = "041d4d41-9589-43e2-ba13-5680af75ebc2"
severity = "high"
tags = ["Elastic", "Linux"]
type = "query"

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