Amazon GuardDuty introduces machine learning domain reputation model to expand threat detection and improve accuracy

Amazon GuardDuty introduces a new machine learning domain reputation model that can categorize previously unseen domains as highly likely to be malicious or benign based on their behavioral characteristics. GuardDuty uses this new capability to alert customers when an EC2 instance in their AWS environment is communicating with a domain identified as malicious and to improve the accuracy of existing domain based threat detections.

Source:: Amazon AWS