AWS Bedrock Model Invocation Probing via ValidationException

Lacey Cochrane@NullVectorX

•updated 28 days ago•3•0•5

Detects repeated occurrences of 'ValidationException' errors in AWS Bedrock 'InvokeModel' and 'Converse' API calls. This activity is indicative of an attacker attempting to probe or validate the usability of stolen AWS credentials by sending deliberately malformed requests, aiming to confirm successful authentication without triggering common access-related alerts.