Security · Recovery and rebuild

Ransomware recovery and rebuild, in the right order

After a ransomware event the work is technical and sequential: contain the spread, preserve evidence, restore from backups that are known to be clean, rebuild what cannot be restored, and harden everything before it reconnects. IT Perfection does the hands-on recovery; your insurer, counsel and incident-response firm keep their roles.

Contain, restore, rebuildWorks with your insurer's IR teamHardened before reconnecting
Network engineer patching fiber and cabling in a server rack
1 · ReviewWe check what is backed up, how often, where the copies live and whether a restore actually works.

When to call us

When to call

  • Files are encrypted or renamed across servers and workstations
  • A ransom note has appeared and systems are offline
  • Backups exist but nobody is sure they are clean or complete
  • Active Directory or the domain controllers were affected
  • The incident-response firm has finished and you need the environment rebuilt
  • You recovered once already and want it never to happen again

What you get

What the recovery includes

Clear sequence, written as it happens, so your insurer and leadership know what was done.

Containment

Affected systems isolated, remote access closed, credentials reset in the right order.

Backup validation

Backups checked for integrity and infection before anything is restored.

Backup and disaster recovery

Restore

Servers, file shares and Microsoft 365 data restored from clean copies.

Rebuild

Systems with no clean backup rebuilt from scratch: Windows Server, Active Directory, applications.

Active Directory design

Hardening

EDR, MFA, patching, segmentation and firewall rules in place before reconnecting.

EDR, MDR and XDR deployment

Documentation

Timeline of actions, what was restored, what was rebuilt and what changed.

How the work runs

How the recovery runs

  1. Contain

    Stop the spread and preserve evidence.

  2. Assess

    What is encrypted, what is clean, what backups exist.

  3. Restore

    Clean systems and data brought back first.

  4. Rebuild

    Anything without a clean copy rebuilt.

  5. Harden

    Protections in place before users return.

Every engagement starts with a written scope and a clear quote, so you know the expected cost before work starts. How pricing works

Technology and guides

Technology involved

Veeam and other backup platformsWindows Server and Active DirectoryHyper-V and VMwareMicrosoft 365 and Entra IDEDR, MDR and XDRFirewalls and VPNImmutable backup storage

Free guides from our IT library on this topic:

Ali Hassani, CISSP and Certified CISO, IT Perfection

Who does the work

Ali Hassani, CISO

IT Perfection is led by Ali Hassani, who has 25+ years of experience in IT operations, Microsoft infrastructure, networking and cybersecurity. Design, implementation and troubleshooting work is planned and reviewed by Ali personally.

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Need an independent security audit, compliance readiness or vCISO support instead? IT Perfection handles design, implementation and day-to-day IT; OC Security Audit is the related cybersecurity brand for audits, compliance readiness and vCISO work.

Related services

Often needed together

Security remediation and implementation

View service

Backup and disaster recovery

View service

Network security hardening

View service

Questions

Ransomware recovery: common questions

Do you negotiate with the attackers or handle the ransom?

No. Negotiation, legal notification and insurance claims are handled by your insurer, counsel and incident-response firm. IT Perfection does the technical recovery and rebuild.

Can you work alongside the incident-response firm our insurer assigned?

Yes. That is the usual arrangement: they lead the investigation, we do the hands-on restore and rebuild and follow their evidence-handling instructions.

What if the backups were encrypted too?

Then the affected systems are rebuilt from scratch and data is recovered from whatever clean sources exist, such as Microsoft 365, offline copies or vendor systems.

How do we stop it happening again?

The rebuild includes hardening: EDR, MFA everywhere, patching, segmentation, firewall rules and immutable backups. An independent review afterwards is available through OC Security Audit.

What does it cost?

It depends on the size of the environment and how much can be restored versus rebuilt. The first call is free, and work is quoted in writing as the scope becomes clear.

Recover, rebuild and come back stronger.

Start with the free 30-minute review. No obligation, and you leave with a clear list of what is fine and what needs attention.

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