EDR (Endpoint Detection and Response) is a security technology that monitors and responds to threats on endpoints such as computers, servers, and mobile devices.

What is EDR?

EDR is a security solution that provides complete visibility of endpoint activity and enables detection, investigation, and response to advanced threats.

Main Features

Detection

  • Continuous monitoring: 24/7 endpoint surveillance
  • Behavior analysis: Detection of anomalous behaviors
  • Correlation: Event correlation between endpoints
  • Machine Learning: Use of AI for detection

Investigation

  • Forensics: Forensic analysis of incidents
  • Timeline: Event timeline
  • Search: Search in historical data
  • Visualization: Attack visualization

Response

  • Containment: Isolation of compromised endpoints
  • Remediation: Automatic malware removal
  • Rollback: Reversal of malicious changes
  • Quarantine: Quarantine of suspicious files

EDR Components

Agent

  • Installation: Software installed on endpoints
  • Collection: Security data collection
  • Transmission: Data transmission to server
  • Response: Execution of response actions

Server

  • Storage: Security data storage
  • Analysis: Analysis of collected data
  • Correlation: Event correlation
  • Alerts: Alert generation

Console

  • Dashboard: Centralized control panel
  • Visualization: Data visualization
  • Management: Policy and configuration management
  • Reports: Report generation

Types of Data Collected

Processes

  • Creation: Process creation
  • Execution: Process execution
  • Termination: Process termination
  • Parent-Child: Parent-child relationships

Files

  • Creation: File creation
  • Modification: File modification
  • Deletion: File deletion
  • Access: File access

Network

  • Connections: Network connections
  • DNS: DNS queries
  • HTTP: HTTP traffic
  • Ports: Port usage

Registry

  • Events: System events
  • Logs: Application logs
  • Changes: Configuration changes
  • Errors: System errors

Enterprise

  • CrowdStrike Falcon: Leading platform
  • Microsoft Defender for Endpoint: Microsoft solution
  • SentinelOne: Security platform
  • Carbon Black: VMware solution

Open Source

  • Wazuh: Open source platform
  • OSSEC: Host-based intrusion detection
  • Elastic Security: Elastic solution
  • Suricata: Open source IDS/IPS

Cloud

  • AWS GuardDuty: AWS service
  • Azure Sentinel: Microsoft SIEM
  • Google Cloud Security: Google solution
  • Splunk UBA: Behavior analysis

Use Cases

Malware Detection

  • Known malware: Detection of known malware
  • Unknown malware: Detection of new malware
  • Ransomware: Ransomware detection
  • APT: Persistent threat detection

Incident Investigation

  • Forensics: Forensic analysis
  • Timeline: Event reconstruction
  • Root cause: Root cause identification
  • Impact: Impact assessment

Incident Response

  • Containment: Endpoint isolation
  • Remediation: Threat removal
  • Recovery: System restoration
  • Prevention: Control implementation

Implementation

Phase 1: Planning

  • Requirements analysis: Define needs
  • Tool selection: Choose platform
  • Architecture: Design the solution
  • Budget: Estimate costs

Phase 2: Deployment

  • Installation: Deploy the platform
  • Configuration: Configure policies
  • Integration: Connect with other tools
  • Testing: Validate operation

Phase 3: Operation

  • Monitoring: Continuous surveillance
  • Maintenance: Updates and patches
  • Optimization: Continuous improvement
  • Training: Staff training

Best Practices

Configuration

  • Policies: Configure appropriate policies
  • Thresholds: Establish alert thresholds
  • Filters: Implement filters to reduce noise
  • Tuning: Adjust parameters according to environment

Monitoring

  • Dashboard: Monitor dashboard regularly
  • Alerts: Respond to alerts quickly
  • Analysis: Analyze behavior patterns
  • Reports: Generate reports regularly

Maintenance

  • Updates: Keep updated
  • Patches: Apply security patches
  • Backup: Backup configurations
  • Testing: Test operation regularly

Metrics and KPIs

Operational

  • Detection time: Detection speed
  • Response time: Response speed
  • False positives: Percentage of false alerts
  • Coverage: Percentage of monitored endpoints

Security

  • Blocked threats: Number of blocked threats
  • Resolved incidents: Number of resolved incidents
  • Remediation time: Time to remediate
  • Effectiveness: Solution effectiveness

Integration with Other Tools

SIEM

  • Logs: Send logs to SIEM
  • Correlation: Correlation with other events
  • Alerts: Integration with alert systems
  • Analysis: Joint event analysis

SOAR

  • Automation: Response automation
  • Orchestration: Tool orchestration
  • Workflows: Automated workflows
  • Playbooks: Response scripts

XDR

  • Extended detection: Expanded visibility
  • Integrated response: Coordinated response
  • Advanced analysis: Deeper analysis
  • Improved correlation: Better correlation

References