Identifies a change to an AWS Security Group Configuration. A security group is like a virtual firewall, and modifying configurations may allow unauthorized access. Threat actors may abuse this to establish persistence, exfiltrate data, or pivot in an AWS environment.
Rule type: query
Risk score: 21
Runs every: 10 minutes
Maximum alerts per execution: 100
- Continuous Monitoring
- Network Security
Version: 2 (version history)
Added (Elastic Stack release): 7.15.0
Last modified (Elastic Stack release): 7.16.0
Rule authors: Elastic, Austin Songer
Rule license: Elastic License v2
A security group may be created 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 creations from unfamiliar users or hosts should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
## Config The AWS Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule.
event.dataset:aws.cloudtrail and event.provider:iam.amazonaws.com and event.action:(AuthorizeSecurityGroupEgress or CreateSecurityGroup or ModifyInstanceAttribute or ModifySecurityGroupRules or RevokeSecurityGroupEgress or RevokeSecurityGroupIngress) and event.outcome:success
Framework: MITRE ATT&CKTM
- Version 2 (7.16.0 release)
- Formatting only