When a cyber incident hits, chaos ensues without a plan. Ransomware, phishing— they’ve all spiked 300% lately. An incident response (IR) plan minimizes damage and downtime.
Foerte assists in crafting IR strategies tailored to your ops. Here’s a step-by-step to build yours, NIST-inspired.
The Need for IR Planning
Downtime costs $9K/minute for large firms. A plan covers:
- Detection: Spotting anomalies early.
- Containment: Isolating threats.
- Recovery: Back to business.
Test it quarterly via tabletop exercises.
Step 1: Assemble Your IR Team
Roles: Incident commander, tech leads, legal, PR.
- Document contacts: Use a shared sheet or tool like PagerDuty.
Step 2: Detection and Analysis
Set up monitoring.
- Tools: Splunk or ELK Stack (Elasticsearch, Logstash, Kibana).
- Alert on anomalies: e.g., unusual logins—grep ‘Failed password’ /var/log/auth.log.
- Analyze: Use Volatility for memory forensics on compromised hosts.
Classify incidents (e.g., data breach vs. DDoS).
Step 3: Containment, Eradication, Recovery
- Contain: Isolate affected systems—iptables -A INPUT -s bad-ip -j DROP.
- Eradicate: Remove malware with scans (e.g., ClamAV).
- Recover: Restore from backups—test them first!
Step 4: Post-Incident Review
Log lessons: What went wrong? Update plan.
- Metrics: Time to detect (TTD), time to respond (TTR).
Step 5: Integration with Tools and Training
Automate with SOAR (Security Orchestration). Train via sims.
