IR Playbook [Template]: Compromised AWS Credentials
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Key Takeaways
- 1. Compromised credentials require fast, structured responseThe playbook emphasizes that AWS credential compromise isn’t a single event — you must immediately detect, investigate, contain, eradicate, and remediate using a consistent, repeatable workflow
- 2. Leverage AWS-native tools for visibility across the incident lifecycleDetection and investigation hinge on Security Hub, GuardDuty, CloudTrail, Trusted Advisor, IAM reports, and Access Analyzer — all used to confirm misuse, identify blast radius, and gather evidence
- 3. Long-term fixes focus on eliminating root causesEradication and remediation stress removing attacker-created resources, hunting for persistence, patching vulnerabilities, and — most importantly — replacing long-term AWS credentials with temporary, least-privilege access
Who is this template for?
Cloud Security Teams: Professionals responsible for securing AWS environments and managing identity risks.
DevOps Engineers: Teams involved in managing infrastructure who need clear steps to handle credential-related incidents.
Incident Responders: Security teams requiring a structured, AWS-focused approach to handling compromised credentials.
Regulated Industries: Organizations with strict compliance needs that must ensure fast, efficient responses to identity-related threats.
AWS-Focused Organizations: Companies heavily reliant on AWS for their cloud operations, where compromised credentials can lead to significant operational risks.
What's included?
This playbook template offers a thorough walkthrough of handling compromised credentials in AWS, covering:
Detection
How to monitor AWS notifications, bills, and GuardDuty findings to identify signs of credential misuse.
Tips for leveraging IAM credential reports and Access Analyzer to spot anomalies.
Steps for reporting credential compromises to AWS for collaborative threat mitigation.
Investigation
Using AWS tools like Security Hub, CloudTrail, and IAM Access Advisor to pinpoint the root cause and impact of the compromise.
Techniques for building a clear timeline and understanding the blast radius of the incident.
Containment
Step-by-step guidance for disabling compromised credentials, revoking sessions, and isolating impacted resources like EC2 instances and S3 buckets.
Using IAM policies to block unauthorized access quickly and effectively.
Eradication
How to delete malicious resources and unknown assets created by compromised identities.
Checking for signs of persistence to ensure attackers cannot regain access.
Remediation
Strategies for identifying and patching vulnerabilities that attackers may exploit.
Transitioning from long-term credentials to temporary ones to minimize risks.
Best practices for preventing similar incidents in the future with IAM role configurations and federated identity access.
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