Skip to main content

Security Monitoring & Incident Response

Security Operations Center​

Monitoring Architecture​

SIEM Configuration​

Log Sources​

log_sources:
  application:
    type: application_logs
    format: json
    fields:
      - timestamp
      - service
      - action
      - user_id
      - result
    retention: 90d

  security:
    type: security_events
    format: cef
    fields:
      - timestamp
      - event_type
      - severity
      - source
      - target
    retention: 365d

  network:
    type: network_flows
    format: ipfix
    fields:
      - timestamp
      - source_ip
      - destination_ip
      - protocol
      - bytes
    retention: 90d

Detection Rules​

Detection Configuration​

detection_rules:
  authentication:
    - name: brute_force_attempt
      description: Multiple failed login attempts
      condition: count(failed_login) > 5
      timeframe: 5m
      severity: high
      actions:
        - block_ip
        - alert_security

    - name: unusual_login_location
      description: Login from new location
      condition: new_login_location && high_risk_country
      severity: medium
      actions:
        - require_mfa
        - alert_security

  access_control:
    - name: privilege_escalation
      description: Sudden privilege increase
      condition: role_change && admin_access
      severity: critical
      actions:
        - block_access
        - alert_security
        - notify_admin

Incident Response​

Incident Procedures​

incident_response:
  severity_levels:
    critical:
      response_time: 15m
      notification:
        - security_team
        - executive_team
        - technical_leads
      actions:
        - system_isolation
        - evidence_collection
        - stakeholder_communication

    high:
      response_time: 30m
      notification:
        - security_team
        - technical_leads
      actions:
        - threat_assessment
        - containment_measures
        - incident_documentation

    medium:
      response_time: 2h
      notification:
        - security_team
      actions:
        - investigation
        - monitoring
        - documentation

Alert Management​

Alert Configuration​

alert_management:
  classification:
    critical:
      sla: 15m
      escalation: immediate
      notification_channels:
        - phone
        - email
        - slack
      
    high:
      sla: 1h
      escalation: 2h
      notification_channels:
        - email
        - slack
      
    medium:
      sla: 4h
      escalation: 8h
      notification_channels:
        - email

  routing_rules:
    security_incidents:
      team: security
      priority: high
      
    system_issues:
      team: operations
      priority: medium
      
    access_issues:
      team: iam
      priority: high

Threat Intelligence​

Intelligence Integration​

threat_intelligence:
  feeds:
    - name: commercial_feed
      type: ip_reputation
      update_frequency: 1h
      confidence_threshold: 80
      
    - name: malware_indicators
      type: file_hashes
      update_frequency: 6h
      confidence_threshold: 90

  integration:
    - system: waf
      feed_types:
        - ip_reputation
        - attack_signatures
      
    - system: endpoint_protection
      feed_types:
        - file_hashes
        - malware_signatures

Best Practices​

Monitoring​

  1. Comprehensive logging
  2. Real-time monitoring
  3. Baseline establishment
  4. Regular review

Detection​

  1. Multi-layer detection
  2. Regular rule updates
  3. False positive tuning
  4. Performance optimization

Response​

  1. Documented procedures
  2. Regular training
  3. Post-incident review
  4. Continuous improvement

Documentation​

  1. Incident documentation
  2. Response procedures
  3. Lessons learned
  4. Regular updates