DFIR Digital Forensics
Digital forensic analysis and immediate cyberattack response. Identification, containment, eradication, and recovery with evidence preservation for legal use.
Concepto
What is DFIR?
DFIR (Digital Forensics & Incident Response) combines two critical disciplines: digital forensic analysis to investigate what happened during a cyberattack, and incident response to contain, eradicate, and recover from the attack in the shortest time possible.
Our DFIR team is available 24/7 to respond to ransomware, intrusions, data breaches, account compromises, and any security incident. Every minute counts: a rapid response can mean the difference between a contained incident and a business catastrophe.
Proceso
6 Phases of Incident Response
Structured methodology based on NIST SP 800-61 and SANS.
DETECTION & TRIAGE
Incident Identification
Initial alert analysis, severity classification, scope determination, and response team activation per protocol.
- Severity classification
- Preliminary scope
- Protocol activation
CONTAINMENT
Limit the Damage
Isolation of affected systems, blocking of attack vectors, and preservation of the current state for forensic analysis without destroying evidence.
- Systems isolated
- Vectors blocked
- State preserved
FORENSIC INVESTIGATION
In-Depth Analysis
Forensic analysis of memory, disk, network, and logs. Reconstruction of the attack kill chain, identification of the entry vector, and attacker TTPs.
- Attack timeline
- Entry vector
- TTPs identified
ERADICATION
Eliminate the Threat
Complete removal of malware, backdoors, and persistence mechanisms. Closure of exploited vulnerabilities and verification of full cleanup.
- Malware removed
- Backdoors closed
- Vulnerabilities patched
RECOVERY
Service Restoration
Secure restoration of affected systems and services. Integrity validation, enhanced monitoring, and controlled return to normal operations.
- Systems restored
- Integrity validated
- Enhanced monitoring
LESSONS LEARNED
Continuous Improvement
Complete forensic report, root cause analysis, improvement recommendations, and updates to security protocols and controls.
- Complete forensic report
- Documented root cause
- Improvement plan
Análisis Forense
Types of Forensic Analysis
Disk Analysis
Forensic disk acquisition, file system analysis, deleted file recovery, artifact analysis, and activity timeline reconstruction.
Memory Analysis
RAM dump and analysis: malicious processes, code injections, in-memory credentials, active network connections, and volatile artifacts.
Network Analysis
Network traffic capture and analysis: C2 communications, data exfiltration, lateral movement, DNS tunneling, and suspicious connections.
Log Analysis
Correlation of server, firewall, proxy, and application logs to reconstruct the complete attack timeline and attacker activity.
Malware Analysis
Static and dynamic malware analysis in a sandbox: functionality, communications, persistence, IOCs, and malware family attribution.
Email Analysis
Forensic analysis of phishing emails: headers, attachments, URLs, attacker infrastructure, and campaign scope within the organization.
Especialización
Types of Incidents
Ransomware
Immediate containment, negotiation if needed, decryption, and recovery
Account Compromise
Access analysis, revocation, activity forensics, and hardening
Data Breach
Identification of affected data, scope assessment, notification, and evidence
APT / Espionage
Threat hunting, persistence analysis, complete cleanup
Insider Threat
Behavioral analysis, legal evidence preservation
Business Email Compromise
Compromise chain analysis, fund recovery
Tiempos de Respuesta
Guaranteed SLAs
P1 - Critical
< 15 minActive ransomware, ongoing exfiltration, massive compromise
P2 - High
< 1 hourConfirmed unauthorized access, malware detected, BEC
P3 - Medium
< 4 hoursCompromised account, successful phishing, network anomaly
P4 - Low
< 8 hoursBlocked attack attempt, preventive analysis
Evidencias
Evidence Preservation
Rigorous chain of custody with legal and expert witness validity.
Chain of Custody
Rigorous documentation of each piece of evidence: acquisition, storage, access, and transfer with SHA-256 hashing.
Cryptographic Integrity
Hashing of all digital evidence to ensure it has not been altered since acquisition.
Secure Storage
Evidence stored in a secure repository with encryption, access control, and access auditing.
Expert Witness Reports
Forensic reports with expert witness validity for legal proceedings, insurance claims, and regulators.
Entregables
Lo Que Recibes
Complete Forensic Report
Detailed incident analysis with timeline, TTPs, and root cause.
Identified IOCs
Indicators of compromise: IPs, domains, hashes, URLs, and patterns.
Impact Assessment
Affected data, compromised systems, and attack scope.
Improvement Recommendations
Corrective and preventive actions to avoid similar incidents.
Executive Report
Summary for management with business impact and actions taken.
Preserved Evidence
Evidence package with chain of custody for legal use.
FAQ
Preguntas Frecuentes
DFIR (Digital Forensics & Incident Response) combines digital forensic analysis with security incident response. You need it when you suffer a cyberattack (ransomware, intrusion, data breach), when you suspect a breach, or when you need digital evidence for legal proceedings.
Contact our DFIR team immediately (available 24/7). DO NOT shut down affected systems (you will lose evidence in memory), DO NOT attempt to clean up on your own, and document everything you observe. Our team will guide you through the initial steps while connecting remotely or deploying on-site.
For P1 (critical) incidents, our response time is under 15 minutes. The DFIR team begins remote containment immediately. If physical presence is required, we deploy to your premises as quickly as possible.
Yes. Our forensic analyses follow internationally recognized methodologies (RFC 3227, ISO 27037) with documented chain of custody, cryptographic integrity of evidence, and reports with expert witness validity for legal proceedings and insurance claims.
Yes. Our ransomware protocol includes: immediate containment to prevent propagation, variant analysis, evaluation of decryption options (including publicly available decryption tools), negotiation if necessary, system restoration, and post-incident hardening.
We analyze hard drives, RAM, network traffic, system and application logs, emails, mobile devices, cloud environments, and any other relevant digital artifact. Each type of evidence is acquired and analyzed using certified forensic tools.
We follow a strict protocol: acquisition with certified forensic tools, SHA-256 hashing of each piece of evidence, documented chain of custody, encrypted storage with access control, and a complete audit trail for every access to the evidence.
Yes. We offer DFIR retainer contracts with pre-paid hours, guaranteed SLAs, and priority response. The retainer ensures immediate team availability when you need it, without procurement delays during an emergency.
Explore more services
Ready to protect your business?
Request a free initial assessment and discover how we can strengthen your organization's security. No obligation.
Contact Now