Ransomware attacks are no longer a question of if—they're a matter of when. With hackers increasingly targeting backup and disaster recovery (DR) systems, organizations need more than prevention strategies; they need a battle-tested plan for minimizing damage, forensically determining what's happened, and restoring their environment without paying the ransom. Renowned experts W. Curtis Preston and Dr. Mike Saylor offer a comprehensive guide to protecting critical systems and responding effectively when the worst happens.

Whether you're a security professional who's unaware of how exposed your backup systems are or a backup admin in need of stronger security expertise, this book is your essential road map. With actionable advice, clear frameworks, and step-by-step guidance, it bridges the gap between data protection and cybersecurity—empowering teams to deliver decisive, effective responses when faced with ransomware.

• Prevent 90% of ransomware attacks with practical, simple steps
• Shield your backup systems from also being a victim of the attack
• Minimize the blast radius of attacks on your infrastructure
• Identify, isolate, and restore compromised systems with confidence
• Develop and test a detailed incident response plan

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Spis treści

Learning Ransomware Response & Recovery. Stopping Ransomware One Restore at a Time eBook -- spis treści

• Preface
  • Why This Book
  • A Different Tack
  • Bringing in the Cavalry
  • Mikes Story
  • How This Book Is Organized
  • Conventions Used in This Book
  • OReilly Online Learning
  • How to Contact Us
  • Acknowledgments (Curtis)
  • Acknowledgments (Mike)
• I. Identify
• 1. What Is Ransomware?
  • What Is Ransomware?
  • How Do You Get Ransomware?
    • After the Initial Infection
  • How Ransomware Avoids Detection
    • Encryption and Obfuscation
    • Polymorphism
    • Fileless Malware Techniques
    • Exploiting Legitimate Tools
    • Stealthy Command-and-Control Channels
    • Delaying Execution
    • Behavioral Evasion
    • Bypassing Endpoint Security
    • Anti-Analysis Techniques
    • Self-Destruction and Anti-Forensic Techniques
  • A Brief History of Ransomware
  • The Evolution of Ransomware
    • Double Extortion
  • Understanding the Attackers: Initial Access Brokers
  • Understanding the Typical Attack Sequence
    • Reconnaissance
    • Initial Access
    • Execution and Installation
    • Expanding Scope and Data Gathering
      • Lateral movement
      • Data exfiltration
    • Ransom Demand
      • Ransom note delivery
      • Ransom note contents
      • Ransom amounts
      • Cryptocurrency payments
      • Why double extortion is so scary
    • Negotiation and Payment
    • Decryption and Recovery
  • Summary
• 2. Your Backup System Is Under Attack
  • Why Is the Backup System Under Attack?
    • Quick Chat About RTO and RPO
    • Threat Actors Love/Hate Backups
    • How Threat Actors Disable the Backup/DR System
    • The Backup System as an Attack Surface
      • Exfiltration
      • Privilege escalation
      • File access
      • Listen to the hacker
  • How Did We Get Here?
    • Disk Backups Made It Worse
    • Sounds Pretty Bleak
  • Summary
• II. Protect
• 3. Backup and Recovery Basics
  • Backup or Disaster Recovery?
    • The Same System
    • A Different Process
  • Defining Backup System Requirements
    • What Does Your Organization Do?
    • IT Does Not Determine Requirements
    • Requirements and Service Levels
      • Gather requirements
      • Review requirements
      • Determine service level agreements
    • Design, Implement, and Document Your System
  • Backup and Recovery Basics
    • Recovery Testing
    • Deduplication
    • Backup Levels
    • Metrics
      • Recovery metrics
        • Recovery time objective
        • Recovery point objective
        • Negotiating RTO and RPO
        • Recovery time actual (RTA) and recovery point actual (RPA)
      • Capacity metrics
        • License/workload usage
        • Backup storage capacity and usage
        • Throughput capacity and usage
        • Compute capacity and usage
      • Backup window
      • Backup and recovery success and failure
      • Retention
      • Using metrics
    • Item Versus Image-Level Backups
    • Backup Selection Methods
  • Backup Methods
    • Is Everything Backup?
      • Three versions of your data
      • On two different media
      • Somewhere else
      • The 3-2-1-1-0 rule
    • Two Ways to Restore
      • Backup methods supporting a traditional restore
        • Traditional full and incremental backups
        • File-level incremental forever
        • Multiplexing
        • Block-level incremental forever
        • Source deduplication
      • Methods supporting instant recovery
        • Replication
        • Continuous data protection (CDP)
        • Snapshots
        • Near-continuous data protection (Near-CDP)
    • The Bottom Line
  • Deciding on a Backup Method
    • Do You Need to Change?
    • Tips for Considering a New Backup System
    • Cloud Considerations
  • Backup and Archive Myths
  • Summary
• 4. Stop Most Ransomware
  • Table Stakes
    • Continuously Update Your Patches
    • Enforce MFA or Passkeys
      • Passkeys: The future of authentication
    • Enforce Solid Password Management
      • Use a password manager
  • People, Process, and Technology
  • Know Your Environment
    • What to Document
      • Basic asset information
      • Business context and criticality
      • System dependencies and relationships
      • Data mapping and classification
      • Recovery requirements
      • Ownership and contacts
      • Security context
      • Third-party connections
    • Making Your Inventory Actionable
  • Process: Policies and Procedures
    • Configuration Policies and Implementation
    • Authentication and Encryption Policies
    • Patch and Vulnerability Management
  • Technology: Technical Controls and Monitoring
    • System Hardening
      • Disable common services
      • Advanced endpoint protection
    • Email Filtering
    • Detect and Monitor
      • Continuous monitoring
      • Comprehensive protection with defense in depth
  • People: Building Your Human Defense
    • Employee Training
    • Testing and Reinforcement
  • Summary
• 5. Minimize the Blast Radius
  • Know Thyself
  • Preparing for a Ransomware Incident
  • Endpoint Security: The First Line of Defense
    • Deploying Endpoint Detection and Response Tools
    • Using Next-Gen Anti-Malware Solutions
      • Role of real-time scanning
      • Advanced features
      • Configuration best practices
      • Ensuring anti-malware tools are up-to-date
      • Integrating anti-malware with a broader security ecosystem
      • Common mistakes to avoid
    • Importance of Endpoint Hardening
      • Role-based configurations
      • Disabling unused ports and services
      • Controlling USB device access
      • Harden operating system and software configurations
      • Enforce strong user permissions
      • Perform regular security patching
      • Endpoint isolation
      • Monitor endpoint activity
  • Network Security: Limiting Lateral Movement
    • Network Segmentation: Containing the Blast Radius
    • Firewalls and Traffic Control
    • Network Monitoring and Behavioral Analytics
    • DNS Filtering
    • Network Vulnerability Assessments
      • Network vulnerability assessment
      • Network penetration testing
  • Access Control and Privilege Management
    • Implementing the Principle of Least Privilege
    • Enforcing Multifactor Authentication
  • Data Protection Strategies
    • Data Classification and Segmentation
      • Implement data classification policies
      • Separate critical data
      • Control data proliferation
    • Data Encryption
      • Understanding encryptions role in ransomware defense
      • Encryption that actually helps against ransomware
    • Backup and Recovery Strategies
    • Data Loss Prevention
      • Implement network-based DLP
      • Deploy endpoint DLP
      • Monitor for data staging
    • Database-Level Protections
      • Enable database auditing
      • Restrict database access
    • Shadow Copies and Volume Snapshots
      • Enable Windows Volume Shadow Copy Service (VSS)
      • Protect shadow copies from deletion
      • Implement SAN/storage array snapshots
    • File Access Controls and Monitoring
      • Implement granular file permissions
      • Enable file access auditing
      • Deploy file integrity monitoring (FIM)
    • Virtualization
      • Isolation and containment
      • Snapshots and rollbacks
      • Segmentation and micro-isolation
      • Rapid cloning for recovery
  • Summary
• 6. Get Ready for Battle
  • Table Stakes: Do These Five Things First
  • Engage with Cyber Professionals
    • Find a Blue Team Now
    • Get a Red Team Too
    • Find a Cyber Insurance Carrier
  • Identify Forensic Tools
    • Forensic Imaging Tools
      • Commercial tools
      • Open source/free tools
      • Specialized tools
    • Log Analysis Platforms
      • Enterprise SIEM/log analysis platforms
      • Open source/free tools
      • Specialized analysis tools
      • Cloud-native solutions
    • Learn Your Tools
  • Secure the Backup System
    • Taking Backups Out of the Equation
    • Role-Based Administration
    • Secure Your Logins
      • Passwords and password managers for backup systems
      • Multifactor authentication for backup infrastructure
      • Passkeys and FIDO for backup systems
    • Update Your Backup Software
    • Segregate All Backup Infrastructure
    • Shut Off Remote Desktop Protocol
    • Lock Down SMB
  • Secure Backup Storage
    • Use Direct Storage Connections (Like Veeams Direct SAN Access)
    • Store Backups in Dedicated Backup Appliances
    • Use Object Storage Instead of File Shares
    • Use Immutable Storage
      • Different meanings of immutability
      • Good: Filesystems that support immutability
      • Better: Purpose-built appliances with immutability features
      • Best: Immutable storage in the cloud
  • Encrypt All Backups
    • At-Rest Encryption
    • In-Flight Encryption
    • Key Management
  • Watch Everything: Monitoring Your Backup Environment
  • Create a Disaster Recovery Plan
    • Full Hot Site
    • Cold Site Recovery
    • Cloud Recovery
    • Failback
      • The dirty secret about failback
      • Data synchronization challenges
      • Network reconfiguration
      • Testing your failback procedures
      • The politics of failback
      • When NOT to failback
  • Summary
• 7. Make Your Incident Response Plan
  • Table Stakes: Before Writing Your IRP
    • 1. Get Executive Sponsorship
    • 2. Name Names, Not Job Titles
    • 3. Write the Templates NowNot During the Crisis
    • 4. Contract the Help Before You Need It
    • 5. Know What Tools Youve Got (and Where to Find Them)
  • Cybersecurity Resources Around the World
    • Whos Got Your Back?
    • Free Frameworks and Tools
    • Early Warning Systems
    • What They Do When Youre Actually Under Attack
    • How to Actually Use This Stuff
    • The Bottom Line
  • Setting Objectives and Scope
    • Defining the Goals of the Incident Response Plan
    • What Does the Incident Response Plan Cover?
      • What types of ransomware are you dealing with?
      • Which systems are you covering?
      • Hows this going to affect the business?
      • Whos in and whos out?
      • Communications
    • Metrics of Effectiveness
    • Matching the Plan to Business Priorities?
  • Assembling Your Incident Response Team
    • Sorting Out Who Does What
    • Whos Calling the Shots?
      • Create a RACI matrix
      • How a RACI works
    • Making Sure Youre Covered 24/7
    • Cross-Training and Alternate Plans
    • Teaming Up with Outside Help
      • Law enforcement
      • Insurance company
      • Response firms
      • Recovery pros
  • Detection and Initial Response Procedures
    • Initial Detection and Assessment
    • First Moves
  • Containment and Evidence Preservation Procedures
    • Forensic Evidence Preservation
      • Forensic imaging methods
      • Get your resources ready now
      • Document everything
      • Forensic imaging
  • Communication and Coordination Procedures
    • Notification, Communication, and Escalation Protocols
      • Inside scoop
      • Outside calls
      • Steer the story
    • Engaging External Response and Support
      • Response firms
      • Law enforcement
      • Insurance carrier/broker
  • Recovery and Investigation Procedures
    • Data Recovery and Remediation: Assessing the Damage and Recovery Scope
    • Restoring Data from Backups
    • Rebuilding and Restoring Systems
    • Deciding on Ransom Payment
    • Evaluating Decryption Options (and Possibly Life Choices)
      • Free tools first
      • Talking to the bad guys
    • Forensic Investigation and Root Cause Analysis
  • Post-Incident Review and Continuous Improvement
    • Conducting a Post-Incident Review
    • Updating the Incident Response Plan
    • Conducting a Root Cause Analysis
    • Training and Awareness Updates
    • Testing and Refining the Plan
  • Planning an Annual Ransomware Tabletop Exercise
    • Defining Exercise Goals and Objectives
    • Selecting Participants
    • Scenario Development
    • Facilitating the Exercise
  • Conducting a Ransomware War Game
    • Setting Up the War Game Environment
      • Live attack simulation versus discussion-based
      • Real-world consequences and time-based decision-making
      • Involving red team/blue team dynamics
    • Playing in a Sandbox
      • Building your mini disaster zone
      • Making it dangerous (but not really)
      • Baiting the hook with fake data
      • Free resources that arent bad
      • Keeping it contained
    • Evaluating Team Performance
      • The debrief that actually matters
      • Now do something about it
    • Updating the Incident Response Plan
    • Tracking Progress and Maturity
  • Summary
• III. Detect
• 8. Detection Tools
  • Introduction to Detection Systems
  • An Undetected Attack
    • The Numbers Are Scary
  • Extended Detection and Response
  • Security Information and Event Management
    • Core Functions
    • Typical SIEM Deployment
  • XDR Versus SIEM
  • Detection Tool Integration
    • Human Integration
    • Elements of Integration
  • Detecting Ransomware with Backups
    • Backup System Events and Anomalies
    • Steps to Leverage Your Backup System
  • Log Everything and Secure Your Logs
    • Logs for Your Primary Environment
    • Logs for Your Backup Environment
    • Where to Store Your Logs
  • Managed Service Providers
    • Expertise Without the Hiring Headache
    • Faster Deployment
    • 24/7 Monitoring
    • Tuning and Maintenance
    • Multi-Client Intelligence
    • Flexible Scaling
    • Compliance Support
    • Making the MSP Relationship Work
  • The Future of Detection
  • Summary
• IV. Respond
• 9. The First 12 Hours
  • The Initial Shock: First Hours of the Attack
    • Discovery and Panic
      • Survival tip
      • Exercise: Feel the chaos
    • Scrambling to Assess
      • Survival tip
      • Exercise: Apply the decision tree
  • Decision-Making Under Pressure
    • Containment Dilemmas
      • Survival tip
      • Exercise: Make the containment call
    • The Ransom Dilemma: Legal Landmines and Empty Promises
      • The boardroom debate
      • Survival tip
      • Exercise: Payment dilemma
    • Stakeholder Conflicts
      • Survival tip
      • Exercise: Manage the chaos
  • You Survived
  • Practical Exercises Summary
  • Case Study Review
  • Summary
• 10. The Marathon
  • Keeping the Business Running During Crisis
    • The Business Continuity Blind Spot
    • ZapMarts Holiday Sales Crisis
    • Change Healthcares Patient Care Emergency
    • Marias Bakerys Customer Service Challenge
    • Northforges Engineering Productivity Crisis
  • Business Continuity Strategies
    • Business-Driven Prioritization
    • Degraded Operations and Manual Workarounds
    • Communication: The Bridge Between Crisis and Customers
    • The Revenue Versus Security Trade-Off
    • Survival Tip
    • Exercise: Plan Your Degraded Operations
    • The Bottom Line on Business Continuity
  • The Human Toll: Stress, Communication, and Morale
    • Emotional Rollercoaster
      • Deep dive: Emotional toll
      • Survival tip
      • Exercise: Build resilience
    • Communication Breakdowns
      • Survival tip
      • Exercise: Craft a message
    • Maintaining Morale
      • Survival tip
      • Exercise: Boost morale
  • Unexpected Curveballs: What Plans Dont Prepare You For
    • Technical Surprises
      • Survival tip
      • Exercise: Plan for technical surprises
    • External Pressures
      • Exercise: Handle the press
    • Resource Constraints
      • Survival tip
      • Exercise: Allocate resources
  • Lessons from the Trenches: Making It Through
    • What Works
    • What Breaks
    • Building Resilience
    • Exercise: Reflect and Improve
  • Practical Exercises Summary
  • Summary
  • Lessons Learned Template
• 11. Analyzing the Breach
  • Beginning the Investigation
  • Why Analysis Matters
  • Guidance for Small and Medium-Sized Businesses
    • Resource Constraints
    • Limited Tooling and Visibility
    • Knowledge Gaps
    • Tool Complexity
    • Budget Limitations
    • Lack of Preparation
  • Sandboxing for Behavior Analysis
    • Real-World Applications of Sandboxing
    • Practical Sandboxing Tools and Techniques
    • Advanced Sandboxing Considerations
    • Best Practices for Effective Sandboxing
      • Survival tip
      • Exercise: Why analysis saves you
  • Identifying the Ransomware Variant
    • Step 1: Examine the Ransom Note
      • Online tools
      • Survival tip
    • Step 2: Check File Extensions and System Artifacts
      • Survival tip
      • Exercise: Spot the Variant
    • Step 3: Analyze Logs and Network Traffic
      • What is AWS CloudTrail?
      • How CloudTrail works
      • Why CloudTrail is critical for security
      • Survival tip
      • Exercise: Dig through logs
    • Step 4: Leverage Threat Intelligence Feeds
      • Survival tip
      • Exercise: Hunt with Intel
  • Assessing the Attacks Scope
    • Step 1: Inventory Infected Systems
      • Survival tip
      • Exercise: Map infected systems
    • Step 2: Detect Lateral Movement
      • Understanding lateral movement in ransomware
      • Tools and techniques for detecting lateral movement
      • Survival tip
      • Exercise: Track lateral movement
    • Step 3: Confirm Data Exfiltration
      • The threat of double extortion
      • Techniques for confirming data exfiltration
      • Regulatory and public relations considerations
      • Exercise: Find the leak
  • Exploring Decryption and Remediation Options
    • Step 1: Check for Public Decryptors
      • Survival tip
      • Exercise: Hunt for a decryptor
    • Step 2: Use Forensic Tools for Remediation
    • Step 3: Evaluate Payment Risks (Last Resort)
      • Payment considerations
      • Survival tip
  • Summary
• 12. Advanced Analysis and Forensics
  • Advanced Analysis Techniques
    • Step 5: Craft YARA Rules (Advanced)
      • Survival tip
      • Exercise: Write a YARA rule
    • Step 6: Monitor Dark Web Leak Sites
      • Survival tip
      • Exercise: Check the dark web
  • Expanding Identification: Reverse-Engineering Ransomware Samples
    • Why Reverse Engineering Matters
    • How to Reverse-Engineer Safely
      • The importance of safe reverse engineering
      • Tools and workflow for reverse engineering
      • Survival tip
      • Exercise: Reverse a sample
  • Expanding Scope Assessment: Cloud-Specific Analysis
    • Why Cloud Scoping Matters
    • How to Scope Cloud Infections
    • Survival Tip
  • Expanding Decryption: Negotiating with Attackers
    • Why Negotiation Is Risky
    • How to Negotiate (If You Must)
    • Risks of Negotiation
    • Best Practices for Negotiation
    • Exercise: Plan a Negotiation
  • Expanding Advanced Analysis: Volatility Tutorial
    • Volatility Tutorial
    • Best Practices for Volatility Analysis
    • Volatility Workflow
      • Survival Tip
      • Exercise: Use Volatility
  • Post-Analysis Reporting
    • Building a Report
    • Sample Report
    • Executive Summary
    • Incident Overview
      • Ransomware variant
      • Scope of infection
    • Response Actions
      • Timeline of Key Events
      • Actions Taken
      • Decryption Efforts
    • Lessons Learned
    • Next Steps and Recommendations
    • Regulatory and Stakeholder Considerations
  • Summary
• 13. Contain the Attack
  • What Is Containment and Eradication?
  • The Importance of Containment
  • The Containment Versus Forensics Dilemma
    • Three Approaches
      • Containment-first approach
      • Forensics-first approach
      • The hybrid approach
      • The cloud/virtualization approach
      • Containment decision tree
    • Make the Decision
  • Where to Start Containment
  • Snapshot, Suspend, or Pause All Infected VMs
    • Step 1: Suspend VMs Immediately
    • Step 2: Copy VM Files to Isolated Forensic Storage
    • Step 3: Document Everything
    • Create a Panic Button Script
    • The Suspend Versus Shutdown Distinction
    • Testing Your Suspension Process
  • Identify Critical Systems
  • Rapid Forensic Imaging
  • Immediate Containment Actions
    • Step 1: Isolate Infected Devices
      • Disable compromised user accounts
      • Disconnect from network
    • Step 2: Disable Attack Vectors
      • Disable network shares
      • Terminate malicious processes
    • Step 3: Block External Communication
      • Deploy DNS filtering
      • Network monitoring and IDS/SIEM
    • Step 4: Automate Containment
      • SOAR platform capabilities
      • SOAR playbook design
      • Real-time alerts and reporting
      • For organizations without SOAR
    • Verification and Monitoring
  • Forensic Disk Preservation
  • The Final Shutdown Decision
    • Pull the Plug
  • Summary
• 14. Eradicate the Threat
  • Clean, Wipe, or Replace
    • Cleaning
      • Ransomware companion tools
        • Primary loaders
        • Data exfiltration
        • Command-and-control (C2) frameworks
      • Hidden tools
    • Wiping
      • Boot sectors and boot managers
      • Firmware-level infections
      • Hidden partitions and unallocated space
      • Bad sector remapping areas
      • Hypervisor and virtualization layers
      • Network interface card and peripheral firmware
      • SSD overprovisioning areas
    • Replacing
    • Making the Decision
  • Reinstall the Operating System
  • Clean Data Disks
  • Summary
• V. Recover
• 15. Restore and Recover
  • The Goals of Recovery
  • Prioritize Your Restores
  • Choose a Restore Method for OS and Apps
    • Full System Restore
      • Separating OS/application and data disks
      • Booting from alternate media
    • Reinstall and Reconfigure
    • Reimage
  • Choose a Restore Method for Databases
  • Choose a Restore Method for SaaS Applications
    • The SaaS Recovery Challenge
    • The Delete-and-Restore Approach
    • SaaS Recovery Timeline Expectations
    • Application-Specific Considerations
  • Choose a Restore Method for Filesystems
    • Restore Before Infection, Followed by Many Individual Restores
    • Curated Restore
  • Use a Sandbox Area for All Restores
  • Scan for Malware
    • Scanning During the Restore
    • Scanning After Restore
  • Restore Your OS and Data
    • Pick Your Restore Point
    • Test Functionality
    • Monitor for Any Network Activity
  • Recover to the Cloud
    • Why Recover to the Cloud?
    • Planning Your Cloud Recovery
    • Setting Up Temporary Cloud Infrastructure
    • Networking Considerations
    • Data Transfer Challenges
  • Failover and Failback Concepts
    • Understanding Failover
    • Managing the Transition Period
    • Planning Your Return
    • Testing Failback Procedures
    • Long-Term Considerations
  • Summary
• 16. Post-Mortem Analysis
  • The Importance of Post-Mortem Analysis
  • Psychological and Organizational Impact
    • Human Factors
    • Communicating Post-Mortem Results to Employees
  • Documenting What Happened
    • Key Elements to Document
    • Tools for Documentation
    • Best Practices for Documentation
  • Conducting the Post-Mortem Meeting
    • Step 1: Planning the Post-Mortem Meeting
    • Step 2: Structuring the Post-Mortem Meeting
    • Step 3: Facilitating Open Discussion
    • Step 4: Documenting the Meeting
    • Regulatory and Legal Considerations
  • Learning from Your Mistakes
    • Common Mistakes
    • Prioritizing Improvements with Limited Resources
  • Turning Mistakes into Opportunities
  • Adapting Your Incident Response Plan
    • Key Components to Update
      • Testing the updated plan
      • Implementing strict monitoring
    • Key Monitoring Areas
    • Implementing Monitoring Tools
    • Regular Audits and Testing
    • Sharing Threat Intelligence
  • Recommendations for Long-Term Resilience
  • Post-Mortem Analysis Case Studies
    • The Lorenz Attack
    • Healthcare Breach (2023)
  • Summary
• Index