Incident Response Plan Template Free

Standard Operating Procedure: Enterprise Incident Response Plan Execution & Management

Document ID: SOP-TR-SEC-402
Effective Date: October 24, 2023
Version: 3.1.0
Review Cadence: Semi-Annual
Classification: Internal Institutional Standard

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1. Executive Summary & Purpose

This Standard Operating Procedure (SOP) defines the institutional framework for detecting, containing, eradicating, and recovering from information security and operational infrastructure incidents at Template Registry. The purpose of this document is to establish a repeatable, auditable, and mathematically rigorous workflow that minimizes Mean Time to Detection (MTTD) and Mean Time to Resolution (MTTR), ensuring service level agreements (SLAs) are maintained and data integrity is preserved across all distributed systems.

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2. Scope & Prerequisites

2.1 Scope

This procedure applies to all production environments, staging clusters, identity providers, artifact repositories, and auxiliary networks managed by Template Registry. It governs all personnel, contractors, and automated orchestration systems interacting with institutional assets.

2.2 Prerequisites & Tooling

Execution of this SOP requires pre-configured access and operational readiness with the following software and hardware stack:

• SIEM/Observability: Datadog / Splunk Enterprise Security.
• Incident Management & Paging: PagerDuty Enterprise / Jira Service Management.
• Version Control & Artifact Registry: GitHub Enterprise (with audit logging enabled).
• Secure Communications: Out-of-band encrypted chat channels (Signal / Matrix) and designated bridge infrastructure.
• Forensic Tooling: AWS Inspector, Sysdig Secure, Volatility Framework, Wireshark.

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3. Roles & Responsibilities (RACI Matrix)

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4. Step-by-Step Procedure

Phase 1: Detection & Triage

• 1.1 Acknowledge incoming alert within the SLA window (P1: < 5 mins, P2: < 15 mins) via PagerDuty.
• 1.2 Open a dedicated incident bridge (Zoom/Teams) and corresponding incident channel (#inc-YYYYMMDD-[name]).
• 1.3 Designate the Incident Commander (IC) and Scribe (logging actions, timestamps, and artifacts).
• 1.4 Triage telemetry data in Datadog/Splunk to verify anomaly legitimacy and rule out false positives.
• 1.5 Assign initial severity rating (P1-Critical to P4-Low) based on data exfiltration risk, service degradation, and systemic impact.

Phase 2: Containment

• 2.1 Execute short-term containment protocols to isolate compromised nodes without destroying volatile forensic evidence.
• 2.2 Isolate affected instances via AWS Security Groups or network boundary firewalls (e.g., apply sg-quarantine profile).
• 2.3 Revoke active IAM credentials, API tokens, and service account keys associated with compromised scopes.
• 2.4 Snapshot persistent storage volumes (EBS/PersistentVolumes) for subsequent forensic analysis.
• 2.5 Update public/internal status pages (Statuspage.io) if user-facing degradation exceeds 60 seconds.

Phase 3: Eradication

• 3.1 Perform root-cause analysis (RCA) to identify the vector of intrusion, unpatched vulnerabilities, or misconfigurations.
• 3.2 Terminate malicious processes, persistent backdoors, and unauthorized cron jobs identified during triage.
• 3.3 Purge compromised container images from the Template Registry container registry.
• 3.4 Apply emergency hotfixes, dependency updates, or WAF rules to patch the exploited vulnerability path.
• 3.5 Verify code integrity against signed Git commits in the main branch.

Phase 4: Recovery

• 4.1 Restore systems from verified, uncompromised golden images or immutable backups.
• 4.2 Gradually reintroduce traffic via canary deployments or blue/green routing configurations.
• 4.3 Execute synthetic transactions and automated smoke tests against restored APIs.
• 4.4 Monitor error budgets, CPU utilization, and latency metrics for 120 continuous minutes post-restoration.
• 4.5 Formally declare the incident resolved and close the bridge.

Phase 5: Post-Incident Review (PIR)

• 5.1 Schedule the mandatory PIR meeting within 48 hours of incident closure.
• 5.2 Compile the timeline of events, capturing exact timestamps from alert to resolution.
• 5.3 Draft actionable remediation tickets in Jira with assigned owners and hard completion deadlines.
• 5.4 Archive all forensic logs, chat transcripts, and metrics packages into the secure compliance vault.

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5. Quality Assurance & Pro-Tips

Best Practices

• Preserve State: Never power off a running compromised virtual machine directly; always snapshot memory and storage first to preserve volatile artifacts for forensics.
• Single Source of Truth: Ensure the Scribe maintains a real-time ledger in the incident channel; verbal commands without text confirmation lead to operational drift.

Common Pitfalls to Avoid

• Premature Remediation: Deleting indicators of compromise (IOCs) before capturing forensic telemetry makes root-cause determination impossible.
• Scope Creep: Allowing developers to write custom "quick fixes" directly in production instead of deploying through the standard CI/CD pipeline with security scans.

Metric Thresholds

• Mean Time to Detection (MTTD): < 3 minutes for P1 incidents.
• Mean Time to Containment (MTTC): < 15 minutes for P1 incidents.
• Post-Incident Review Completion: 100% of P1/P2 incidents must have an archived PIR within 5 business days.

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6. Frequently Asked Questions (FAQ)

Q: What constitutes a mandatory P1 escalation?
A: Any event resulting in unauthorized access to customer Personally Identifiable Information (PII), complete loss of primary database read/write capabilities, or active deployment of ransomware across core template compilation clusters requires immediate P1 escalation.

Q: How should we handle media or external stakeholder inquiries during an active incident?
A: All external communications are strictly restricted to the Communications Lead and CISO. Engineering and operations personnel must direct all inbound media, customer, or vendor inquiries to security@templateregistry.internal without providing verbal or written speculation.