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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
Persistence

Version: 101 (version history)

Added (Elastic Stack release): 7.16.0

Last modified (Elastic Stack release): 8.6.0

Rule authors: Elastic, Austin Songer

Rule license: Elastic License v2

Potential false positives

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

Investigation guide

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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/

Rule version history

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Version 101 (8.6.0 release)

Formatting only

Version 100 (8.5.0 release)

Formatting only

Version 5 (8.4.0 release)

Updated query, changed from:

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

Version 3 (8.3.0 release)

Formatting only

Version 2 (8.1.0 release)

Formatting only

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