Suspicious New Network Route Added (via cloudtrail)
This rule detects the addition of a new network route to a route table in AWS.
SigmamediumCloudv1
sigma
suspicious-new-network-route-added-via-cloudtrail
title: Suspicious New Network Route Added (via cloudtrail)
id: 3519db03-c0ea-5bb7-b724-e46acbb605fb
status: stable
description: This rule detects the addition of a new network route to a route table in AWS.
references:
- https://attack.mitre.org/techniques/T1686/001/
- https://www.gorillastack.com/blog/real-time-events/important-aws-cloudtrail-security-events-tracking/
author: Huntrule Team
date: 2026-05-13
tags:
- attack.defense-impairment
- attack.t1686.001
logsource:
product: aws
service: cloudtrail
detection:
selection:
eventSource: 'ec2.amazonaws.com'
eventName: 'CreateRoute'
condition: selection
falsepositives:
- Unknown
level: medium
Known false positives
- Unknown
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.