Curriculum Overview: Designing and Testing Incident Response Plans in AWS
Design and test an incident response plan
Curriculum Overview: Designing and Testing Incident Response Plans in AWS
This curriculum provides a comprehensive pathway to mastering Incident Response (IR) within the AWS ecosystem, specifically aligned with the AWS Certified Security - Specialty (SCS-C03) exam objectives. You will learn to move from manual, reactive security postures to automated, resilient, and well-tested response frameworks.
Prerequisites
Before engaging with this curriculum, learners should possess the following foundational knowledge and resources:
- Identity & Access Management (IAM): Proficiency in creating IAM roles, trust policies, and understanding the principle of least privilege.
- Logging Foundations: Knowledge of AWS CloudTrail, VPC Flow Logs, and Amazon CloudWatch Logs ingestion.
- Networking Basics: Understanding of VPC components, security groups, and Network ACLs.
- Technical Environment: An active AWS account with permissions to provision AWS Systems Manager (SSM), AWS Lambda, and AWS Fault Injection Service (FIS).
[!IMPORTANT] This course assumes familiarity with the AWS Shared Responsibility Model; while AWS secures the "Cloud," the customer is responsible for the IR plans "in" the Cloud.
Module Breakdown
| Module | Focus Area | Difficulty | Core AWS Services |
|---|---|---|---|
| M1: IR Planning | Runbooks, Playbooks, and Team Roles | Intermediate | Systems Manager OpsCenter, SageMaker AI |
| M2: Preparation | Infrastructure Hardening & Access | Advanced | IAM, AWS Shield Advanced, RAM |
| M3: Automation | Automated Remediation & SOAR | Advanced | Lambda, Step Functions, EventBridge |
| M4: Containment | Forensics & Threat Eradication | Intermediate | Amazon Detective, Amazon GuardDuty |
| M5: Testing | Simulation & Chaos Engineering | Advanced | AWS Fault Injection Service, Resilience Hub |
Learning Objectives per Module
M1: IR Planning & Strategy
- Design and implement response plans using AWS Systems Manager OpsCenter to centralize incident data.
- Differentiate between Runbooks and Playbooks: Create scripted, step-by-step instructions for specific alerts.
M2: Infrastructure Preparation
- Minimize the blast radius: Configure account structures and VPC isolation to prevent lateral movement during a breach.
- Provision emergency access: Establish "break-glass" procedures and IAM Roles Anywhere for secure system-level access.
M3: Automated Remediation
- Architect SOAR workflows: Use AWS Step Functions to orchestrate multi-step remediation (e.g., isolating an EC2 instance, taking a snapshot, and notifying the SOC).
- Implement Auto-Remediation: Use Lambda functions to automatically revert unauthorized security group changes detected by AWS Config.
M4: Incident Containment & Forensics
- Perform Root Cause Analysis (RCA): Utilize Amazon Detective to visualize and investigate the sequence of events leading to a finding.
- Execute Forensic Capture: Use Automated Forensics Orchestrator to capture EBS snapshots and memory dumps without contaminating evidence.
M5: Testing & Validation
- Validate effectiveness: Use AWS Fault Injection Service (FIS) to simulate real-world attacks (e.g., API throttling, network latency, or instance termination).
- Audit Resilience: Use AWS Resilience Hub to assess if applications meet RTO (Recovery Time Objective) and RPO (Recovery Point Objective) targets.
Visual Anchors
The Incident Response Lifecycle
Blast Radius Mitigation Concept
Success Metrics
How do you know you have mastered this curriculum? You should be able to:
- Reduce Mean Time to Respond (MTTR): Demonstrate a reduction in the time from alert to containment using automation.
- Zero-Touch Remediation: Successfully automate the shutdown of compromised EC2 instances based on Amazon GuardDuty findings.
- Successful Simulation: Pass a "Game Day" exercise where an unplanned infrastructure failure or security breach is successfully mitigated using FIS.
- Forensic Integrity: Provide a chain-of-custody report generated via Amazon Detective and automated snapshotting.
Real-World Application
In a professional environment, mastering these skills transitions you into a Cloud Security Engineer or SOC Analyst role.
- Regulatory Compliance: Organizations in Finance (PCI-DSS) or Healthcare (HIPAA) require documented and tested IR plans.
- Cost Management: Effective IR prevents ransomware from encrypting data and stops cryptojacking scripts from inflating your AWS bill.
- Business Continuity: By using Amazon Application Recovery Controller, you ensure that even during a regional incident, your global architecture remains operational.
[!TIP] Always maintain "Break-Glass" accounts—administrative accounts that bypass SSO/MFA only used in extreme emergencies when the primary identity provider is unavailable.