Incident Response Plan Template PDF

STANDARD OPERATING PROCEDURE: INCIDENT RESPONSE PLAN (IRP) EXECUTION

Document ID: SOP-TR-SEC-042
Effective Date: October 24, 2023
Version: 3.1.0
Review Cadence: Semi-Annual
Author: Julian Vance, Chief Architect, Template Registry

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1. EXECUTIVE SUMMARY & PURPOSE

This Standard Operating Procedure (SOP) defines the institutional-grade framework for identifying, containing, eradicating, and recovering from security incidents affecting Template Registry infrastructure, data pipelines, and template repositories. The objective is to minimize mean time to detect (MTTD) and mean time to respond (MTTR) while preserving forensic integrity for post-incident root cause analysis (RCA). Compliance with this protocol is mandatory for all engineering, platform operations, and security personnel.

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2. SCOPE & PREREQUISITES

Scope

This procedure applies to all cloud-native infrastructure, on-premises nodes, CI/CD pipelines, container registries, and user-facing APIs managed by Template Registry.

Prerequisites & Required Access

• Identity & Access Management: Privileged Access Management (PAM) vault session with Incident-Commander role.
• Tooling Access:
  • SIEM / Log Aggregation (Datadog / Splunk Enterprise).
  • Endpoint Detection & Response (EDR) dashboard (CrowdStrike Falcon).
  • Incident Management platform (PagerDuty / Jira Service Management).
  • Out-of-band communication channel (Signal Enterprise / PagerDuty Secure Conference).
• Physical/Virtual PPE: Multi-factor authentication tokens (Yubikey 5 Series), hardware security modules (HSM) for emergency key revocation.

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3. ROLES & RESPONSIBILITIES (RACI MATRIX)

• Responsible (R): Those who do the work to achieve the task.
• Accountable (A): The one with final approval and fiduciary/operational accountability.
• Consulted (C): Those who provide vital information and operational input.
• Informed (I): Those kept updated on progress and milestone completion.

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4. STEP-BY-STEP PROCEDURE

Phase 1: Identification & Triage (T+00:00 - T+00:15)

• 1.1 Acknowledge incoming alert from SIEM, EDR, or external user report within 5 minutes of generation.
• 1.2 Verify alert validity to rule out false positives via telemetry cross-reference.
• 1.3 Declare an incident by paging the on-call Incident Commander (IC) via PagerDuty.
• 1.4 Spin up the designated bridge (Secure Web Conference) and out-of-band chat channel (#inc-YYYYMMDD-identifier).
• 1.5 Assign initial severity level based on impact:
  • Sev-1: Data exfiltration, active system compromise, core registry outage.
  • Sev-2: Isolated service degradation, unexploited vulnerability identified in production.
  • Sev-3: Non-critical log anomaly, minor administrative tooling failure.

Phase 2: Containment (T+00:15 - T+01:00)

• 2.1 Execute short-term containment to isolate compromised assets without destroying volatile forensic evidence (RAM, network states).
• 2.2 Isolate affected virtual instances from the Virtual Private Cloud (VPC) using automated security group overrides or network ACL blocks:

  aws ec2 modify-instance-attribute --instance-id i-0123456789abcdef0 --groups sg-quarantine
  

• 2.3 Revoke active IAM tokens, API keys, and session cookies associated with compromised service accounts or user identities.
• 2.4 Implement rate-limiting or traffic redirection via Web Application Firewall (WAF) if an active DDoS or application-layer attack is detected.

Phase 3: Eradication & Forensic Preservation (T+01:00 - T+04:00)

• 3.1 Capture forensic snapshots of compromised EBS volumes, containers, and memory dumps for chain-of-custody logging.
• 3.2 Identify the vector of compromise (e.g., zero-day vulnerability, compromised credential, supply chain injection).
• 3.3 Remove malicious artifacts, backdoors, web shells, and unauthorized cron jobs from affected hosts.
• 3.4 Patch underlying vulnerabilities or rotate cryptographic secrets utilized by the breached subsystems.

Phase 4: Recovery (T+04:00 - T+12:00)

• 4.1 Restore systems from known-clean, immutable backups verified prior to the point of compromise.
• 4.2 Re-deploy infrastructure via Infrastructure as Code (IaC) pipelines to ensure architectural integrity.
• 4.3 Execute comprehensive integration and security regression test suites against restored services.
• 4.4 Gradually route live production traffic back to restored nodes using canary deployments (5% -> 25% -> 100%).
• 4.5 Monitor system metrics, error budgets, and logs closely for 24 hours post-recovery.

Phase 5: Post-Incident Review (T+24:00 - T+72:00)

• 5.1 Convene a Blameless Post-Mortem meeting with all core engineering and security stakeholders.
• 5.2 Draft the definitive Root Cause Analysis (RCA) report documenting timeline, impact, and remediation vectors.
• 5.3 Create actionable Jira tickets for preventative engineering tasks with assigned SLAs.
• 5.4 Archive all forensic artifacts, chat transcripts, and the final RCA in the secure compliance repository.

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5. QUALITY ASSURANCE & PRO-TIPS

Best Practices

• Preserve Evidence First: Never power down a live compromised host prior to capturing memory and storage snapshots; volatile data is critical for accurate attribution.
• Single Source of Truth: Direct all internal and external status communications through the designated Incident Commander to prevent misinformation loops.

Common Pitfalls to Avoid

• Premature Eradication: Deleting malware or resetting credentials before isolating the host often alerts sophisticated threat actors, triggering lateral movement or data destruction.
• Scope Creep: Focusing engineering efforts on secondary anomalies while the primary vector remains active and uncontained.

Metric Thresholds

• MTTD (Mean Time to Detect): $\le 5\text{ minutes}$ for Sev-1 incidents.
• MTTR (Mean Time to Respond/Contain): $\le 60\text{ minutes}$ from alert acknowledgment to asset isolation.

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6. FREQUENTLY ASKED QUESTIONS

Q1: What triggers an immediate escalation to a Sev-1 incident?

A: Any confirmed unauthorized access to customer data stores, execution of arbitrary code on production control-plane nodes, or complete infrastructural availability loss affecting template publishing pipelines.

Q2: How should external communications (press, customers) be handled during an active incident?

A: Engineering and operational personnel are strictly prohibited from making public statements or communicating with customers directly regarding security incidents. All inquiries must be routed immediately to the Legal & Compliance Counsel and the designated PR Lead via the incident bridge.