AWS GuardDuty is a threat detection service that helps you monitor your AWS accounts, workloads, and data for potential security risks.
It continuously analyzes and processes data from various sources to identify signs of malicious activity and unauthorized behavior.
Data Sources: GuardDuty monitors a variety of data sources including CloudTrail logs (recordings of AWS API calls), VPC flow logs (network traffic data), DNS logs (domain name resolution activity), Kubernetes audit logs, RDS login activity, S3 logs, EBS volumes, runtime monitoring data, and Lambda network activity logs.
Threat Intelligence: GuardDuty integrates with threat intelligence feeds from AWS and leading third-party sources. This enables it to stay updated on the latest known malicious IP addresses, domains, and tactics used by attackers.
Machine Learning (ML): The service utilizes machine learning models to detect unusual activity patterns that might indicate potential security threats. These patterns could include suspicious login attempts, unauthorized data access, or communication with known malicious entities.
Findings and Alerts: When GuardDuty detects a potential security risk, it generates a finding that details the suspicious activity. You can configure GuardDuty to send alerts via email, Amazon SNS notifications, or integrate it with Security Hub for centralized incident management.
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