Ransomware response and recovery helps an organisation contain malicious activity, understand attacker access, protect evidence and restore trusted services through a controlled recovery process. The service is for organisations experiencing encryption, extortion, suspected data theft, widespread endpoint compromise or precursor activity associated with ransomware.
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Ransomware Response and Recovery
Under attack now? Call us +359877886044 or email us at incident@ctg.bg for active or suspected incidents.
What this service helps you achieve?
The purpose is to reduce decision time during disruptive events, preserve evidence and support controlled recovery.
- Stop or limit active spread and privileged abuse.
- Determine likely entry, persistence and affected scope.
- Protect evidence for investigation, insurance and legal decisions.
- Prioritise restoration of critical services.
- Reduce reinfection and validate recovery controls.
Scope: what we examine
Scope is fixed with you before any work starts. Depending on the objective, environment and authorised access, the engagement may cover:
- Initial triage and crisis coordination.
- Identity, endpoint, server and network containment.
- Forensic preservation and scoping.
- Malware, persistence and lateral-movement evidence.
- Data-exfiltration indicators where evidence exists.
- Backup integrity and recovery readiness.
- Credential reset, trust restoration and hardening.
- Post-incident review and improvement.
Our approach, step by step
Confirm safety, critical services, known impact, communications and decision authority.
1. Stabilise the situation:
Coordinate proportionate isolation, account controls and evidence preservation.
2. Contain spread and protect evidence:
Investigate initial access, privilege, persistence, movement and affected data.
3. Scope attacker activity:
Prioritise systems, validate backups, rebuild trust and define recovery gates.
4. Prepare trusted recovery:
Validate restored services, monitor for recurrence and document improvement actions.
5. Restore and learn:
Deliverables you can act on
Everything we hand over speaks to both leadership and the people who will act on it. Depending on scope, they may include:
- Ransomware situation assessment.
- Containment and decision log.
- Forensic scope and timeline.
- Recovery-priority and dependency plan.
- Credential and trust-restoration actions.
- Recovery-validation observations.
- Final incident and improvement report.
How CTG keeps the work focused?
Contacts, authority, secure communications, evidence handling and escalation are defined before sensitive work begins. Conclusions distinguish confirmed facts, reasonable hypotheses and unavailable evidence, and recovery actions are validated before closure.
When this service is the right choice?
- Files or systems are being encrypted.
- An extortion note or threat actor contact is received.
- EDR shows widespread malicious execution.
- Backups or administrative infrastructure may be compromised.
- Data theft is suspected before encryption.
- Recovery is underway but trust in the environment is uncertain.
How we work: standards and boundaries?
The engagement may draw on NIST incident-response guidance, forensic evidence practices, customer business-continuity and recovery requirements. Referencing a framework describes how we structure the work; it is not, in itself, a certification, accreditation or regulatory ruling.
Timelines are set once scope is agreed, and vary with the size of the environment and the availability of evidence and stakeholders.
CTG does not guarantee decryption, data recovery or the absence of exfiltration. Decisions about ransom communication, payment, sanctions, legal notification and insurance must be made by the customer with authorised legal, insurance and law-enforcement advisers.
Discuss Ransomware Response and Recovery with CTG. A short scoping session confirms the objective, boundaries, evidence, delivery model and outputs before we issue a proposal.
Related services
Frequently asked questions
What does Ransomware Response and Recovery cover?
Scope is fixed with you before any work starts. Typical areas include initial triage and crisis coordination, identity, endpoint, server and network containment, forensic preservation and scoping, and malware, persistence and lateral-movement evidence. Exclusions, required access, your responsibilities and acceptance criteria are all set out in the proposal.
What will we receive at the end of the engagement?
Deliverables depend on the agreed objective and may include ransomware situation assessment, containment and decision log, forensic scope and timeline, and recovery-priority and dependency plan. Every significant finding is tied to evidence, business impact, priority and a clear owner for the next step.
What should we do before sharing incident evidence?
Use the approved secure communication and transfer route. Preserve original data where possible, record who handled it and avoid unnecessary changes to affected systems until response priorities are agreed.
Can CTG guarantee recovery or a particular outcome?
No. Incident conditions, access, damage and third-party dependencies vary. CTG can support containment, investigation and recovery within the agreed scope, but cannot guarantee data recovery, attribution or absence of further compromise.
How long does the engagement take?
Timelines are set once scope is agreed, and vary with the size of the environment and the availability of evidence and stakeholders.
How does this relate to Emergency Cybersecurity Incident Response?
These services answer related but distinct questions. Scoping identifies whether Ransomware Response and Recovery, Emergency Cybersecurity Incident Response, or a coordinated programme is the smallest useful approach without duplicating work.
What are the principal limitations?
CTG does not guarantee decryption, data recovery or the absence of exfiltration. Decisions about ransom communication, payment, sanctions, legal notification and insurance must be made by the customer with authorised legal, insurance and law-enforcement advisers.