The AWS RDS Instance Creation detection rule identifies the creation of Amazon RDS Aurora database instances, which could be exploited by adversaries for unauthorized access or data exfiltration. Designed for environments monitored with AWS CloudTrail, the rule targets successful instance creation events, verifying user activity against established baselines. False positives may stem from legitimate administrative actions or automated scripts, which can be managed by establishing exceptions for known behaviors. Recommended investigative steps include reviewing CloudTrail logs to analyze user identities, source IPs, and correlating events around the instance creation time. The rule's implementation requires data integration from AWS Fleet, with configuration settings monitored to ensure compliance with security standards. In case of an anomaly, immediate isolation of the instance and thorough audit measures are advised to prevent potential data breaches.