**What is AWS GuardDuty? **

AWS GuardDuty is a managed threat detection service that detects threats in your AWS environment. It leverages machine learning and anomaly detection techniques to analyze network activity and AWS operation logs to detect suspicious behavior and potential attacks in real-time.

GuardDuty leverages the following data sources:

• AWS CloudTrail: Monitor API activity and detect suspicious activity
• VPC Flow Logs: Analyze network traffic and detect unauthorized communications
• DNS Query Logs: Monitor malware communication with C2 servers, etc.

This data is then checked against AWS threat intelligence feeds to analyze and detect signs of cyberattacks and internal fraud in real time.

AWS GuardDuty Deployment Objectives and Key Features

The primary objectives of enterprises adopting AWS GuardDuty are to reduce the burden on security operations and detect incidents quickly. Reduce the burden on SOC teams and reduce the time spent on manual log analysis and alert triage.

Key Features of GuardDuty

• Automated detection powered by threat intelligence
  Leverage threat intelligence from AWS to detect known attacks and suspicious activity.
• Continuous monitoring and alert notifications
  GuardDuty continuously monitors your AWS environment and alerts you immediately when threats are detected.
  Integrate with Amazon EventBridge to notify Slack and email of detection events.
• Low false positives, reducing operational burden
  Leverage machine learning to minimize false positives.
• Integration with other AWS services
  Integrate with AWS Security Hub, AWS Lambda, Amazon Detective, and more to automate incident response.

GuardDuty provides cross-section monitoring across your AWS environment, enabling advanced threat detection while saving effort on security operations.

AWS GuardDuty Cost Scheme

GuardDuty pricing is based on the amount of log data being scanned. Specifically, you will be charged for the amount of data processed on:

• AWS CloudTrail Event Logs: Monitor API Activity
• VPC Flow Logs & DNS Query Logs: Monitor network activity
• EKS Audit Logs: Monitoring Kubernetes environment (optional)

GuardDuty pricing varies by region, and the monthly cost varies based on usage. However, a 30-day free trial is offered, so we recommend that you install it first to see how much it feels cost.

It's also important to disable unnecessary account and region monitoring to optimize GuardDuty spend.

Streamline SOC operations with GuardDuty

By leveraging AWS GuardDuty, you can automate your company's security operations and reduce the burden on your SOC team. Detect suspicious activity in real-time and integrate with other AWS security services for rapid incident response.

If you want to strengthen your AWS security measures or reduce the burden of SOC operations, please consider implementing GuardDuty.

Colorkrew provides SOC services to help you strengthen the security of your AWS environment. We also accept consultations on how to use GuardDuty and how to operate it optimally, so if you are interested, please feel free to contact us.