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Anthropic-Cybersecurity-Skills/skills/implementing-ransomware-backup-strategy/assets/template.md
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Ransomware Backup Strategy Assessment Template

Organization Information

Field Value
Organization Name
Assessment Date
Assessor Name
Backup Solution
Number of Servers
Total Data Volume

Current Backup Architecture

Backup Copies Inventory

Copy # Location Media Type Offsite? Immutable? Air-Gapped? Retention Encrypted? Last Successful
1
2
3

3-2-1-1-0 Compliance Checklist

  • 3 Copies: At least 3 copies of data exist
  • 2 Media Types: Backups stored on at least 2 different media types
  • 1 Offsite: At least 1 copy stored offsite or in a different geographic location
  • 1 Immutable/Air-Gapped: At least 1 copy is immutable or physically air-gapped
  • 0 Errors: Automated restore testing passes with zero errors

Recovery Tier Classification

Tier 1 - Critical Systems

System RPO Target RTO Target Backup Frequency Dependencies

Tier 2 - Important Systems

System RPO Target RTO Target Backup Frequency Dependencies

Tier 3 - Standard Systems

System RPO Target RTO Target Backup Frequency Dependencies

Credential Isolation Assessment

Control Status Evidence
Backup servers removed from production AD Yes / No
Dedicated backup admin accounts Yes / No
MFA enabled for backup console Yes / No
Backup network segmented Yes / No
RDP disabled on backup servers Yes / No
Backup encryption keys stored separately Yes / No

Restore Testing History

Date Tier Systems Tested Result RTO Achieved Issues

Gap Analysis

Control Current State Target State Gap Priority Effort
Immutable backup
Credential isolation
Restore testing
Offsite copy
Encryption

Recommendations

Critical Priority

  1. [Finding]: [Recommendation] - Estimated effort: [X days/weeks]

High Priority

  1. [Finding]: [Recommendation] - Estimated effort: [X days/weeks]

Medium Priority

  1. [Finding]: [Recommendation] - Estimated effort: [X days/weeks]

Recovery Runbook Checklist

Pre-Recovery

  • Incident declared and scope determined
  • Affected systems isolated from network
  • Backup integrity verified (immutable copies confirmed clean)
  • Backup timestamps verified to predate infection
  • Recovery environment prepared (clean network, fresh OS images)

Recovery Execution

  • Phase 1: Identity infrastructure (AD, DNS, DHCP)
  • Phase 2: Tier 1 critical systems
  • Phase 3: Tier 2 important systems
  • Phase 4: Tier 3 standard systems
  • Each restored system validated before connecting to network

Post-Recovery

  • All restored systems scanned for persistence mechanisms
  • Security controls validated (EDR, firewall rules, MFA)
  • Users notified and credentials reset
  • Recovery time documented against RTO targets
  • Lessons learned documented

Sign-Off

Role Name Signature Date
IT Director
CISO
Backup Admin