EDR (Endpoint Detection & Response)- CLOUDSTRIKE-CARBONBLACK
→ Secures endpoint devices only (laptops, servers, VMs).
→ Focus is endpoint telemetry + detection + containment.
Endpoint Detection and Response (EDR): EDR kicks in after a threat bypasses traditional defenses. It provides continuous monitoring, detection, and response capabilities for advanced threats and zero-days.
• EDR helps in threat hunting, forensic analysis, and incident response,
often leveraging AI/ML to identify abnormal behavior.
• It gives security teams visibility into endpoint activities and allows them
to contain and remediate threats in real time.
The EDR tool provides the specific capabilities (visibility, data collection, automation) to execute these steps effectively.
THE CORE EDR INCIDENT TROUBLESHOOTING PROCEDURES ARE:
Preparation: Establish a comprehensive incident response plan, define roles and responsibilities for the IT and security teams, and configure the EDR solution’s policies and alert thresholds. This phase also includes training staff and conducting regular simulation exercises to ensure readiness.
Identification & Analysis: The EDR solution continuously monitors endpoints for suspicious activities. When an alert is triggered, security analysts use the EDR’s tools to investigate further, viewing the execution chain, understanding the scope, and determining the root cause of the incident. This involves collecting endpoint telemetry and analyzing threat patterns in real time.
Containment: The immediate priority is to stop the threat from spreading. EDR tools facilitate rapid response actions such as:
Isolating the compromised endpoint(s) from the network.
Terminating malicious processes.
Quarantining suspicious files.
Eradication: Once contained, the team focuses on completely removing the threat from the environment. This includes addressing the root cause, deleting malware, patching vulnerabilities, and ensuring the affected systems are clean and safe to return to operation.
Recovery: Restore affected systems to their original, secure configuration and normal operations. This involves verifying system integrity, bringing isolated devices back online, and continuously monitoring for any signs of reinfection.
Post-Incident Activity (Lessons Learned): After the incident is resolved, a post-mortem meeting is conducted to discuss what happened, what worked well, what didn’t, and what can be improved in the response plan. The incident timeline, response metrics (like Mean Time to Detect/Repair), and overall impact are reviewed.
Ongoing Improvement: The insights gained from the post-incident review are used to update the EDR strategy, refine policies, apply the latest threat intelligence, and provide further training to the incident response team.
Detailed documentation throughout the entire process is critical for compliance, potential legal action, and future reference