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

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AWS RDS Security Group Deletion

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AWS RDS Security Group Deletion

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Identifies the deletion of an Amazon Relational Database Service (RDS) Security Group.

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:

https://docs.aws.amazon.com/AmazonRDS/latest/APIReference/API_DeleteDBSecurityGroup.html

Tags:

Elastic
Cloud
AWS
Continuous Monitoring
SecOps
Monitoring

Version: 1

Added (Elastic Stack release): 7.14.0

Rule authors: Elastic, Austin Songer

Rule license: Elastic License v2

Potential false positives

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A RDS security group deletion 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. Security Group deletions from unfamiliar users or hosts should be investigated. If known behavior is causing false positives, it can be exempted from the rule.

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:rds.amazonaws.com and
event.action:DeleteDBSecurityGroup and event.outcome:success

Threat mapping

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Framework: MITRE ATT&CK^TM

Tactic:
- Name: Impact
- ID: TA0040
- Reference URL: https://attack.mitre.org/tactics/TA0040/
Technique:
- Name: Account Access Removal
- ID: T1531
- Reference URL: https://attack.mitre.org/techniques/T1531/

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