AWS Route Table Created

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AWS Route Table Created

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Identifies when an AWS Route Table has been created.

Rule type: query

Rule indices:

filebeat-*
logs-aws*

Severity: low

Risk score: 21

Runs every: 10 minutes

Searches indices from: now-60m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

Tags:

Elastic
Cloud
AWS
Continuous Monitoring
SecOps
Network Security

Version: 1

Added (Elastic Stack release): 7.16.0

Rule authors: Elastic, Austin Songer

Rule license: Elastic License v2

Potential false positives

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Route Table being created may be done by a system or network administrator. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment. Route Table being created from unfamiliar users or hosts should be investigated. If known behavior is causing false positives, it can be exempted from the rule. Automated processes that uses Terraform may lead to false positives.

Investigation guide

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## Config

The AWS Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule.

Rule query

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event.dataset:aws.cloudtrail and
event.provider:cloudtrail.amazonaws.com and event.action:(CreateRoute
or CreateRouteTable) and event.outcome:success

Threat mapping

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Framework: MITRE ATT&CK^TM

Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/

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