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.



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 recoveryRestore
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 designHardening
EDR, MFA, patching, segmentation and firewall rules in place before reconnecting.
EDR, MDR and XDR deploymentDocumentation
Timeline of actions, what was restored, what was rebuilt and what changed.
How the work runs
How the recovery runs
Contain
Stop the spread and preserve evidence.
Assess
What is encrypted, what is clean, what backups exist.
Restore
Clean systems and data brought back first.
Rebuild
Anything without a clean copy rebuilt.
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
Free guides from our IT library on this topic:

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.








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 serviceBackup and disaster recovery
View serviceNetwork security hardening
View serviceQuestions
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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