Full Report
Huntress breaks down what managed EDR is, how it differs from unmanaged, and what to look for when choosing a provider for your business.
Analysis Summary
# Best Practices: Managed vs. Unmanaged EDR
## Overview
These practices address the selection, implementation, and management of Endpoint Detection and Response (EDR) solutions. The goal is to bridge the gap between simply having a security tool and possessing an actual security *capability* by ensuring that the telemetry, alerts, and response actions are handled by qualified personnel.
## Key Recommendations
### Immediate Actions
1. **Conduct a Resource Audit:** Assess your current IT/Security team's capacity to handle 24/7 alert monitoring. Determine if they have the expertise to distinguish between "noisy" telemetry and true indicators of compromise (IOCs).
2. **Evaluate Visibility Gaps:** Identify endpoints (remote, hybrid, or on-premise) that currently lack real-time monitoring.
3. **Inventory Current Tools:** Document existing antivirus or endpoint products and measure their success rate in stopping recent threats.
### Short-term Improvements (1-3 months)
1. **Define Response Workflows:** Whether using managed or unmanaged EDR, establish clear step-by-step procedures for what happens when a high-priority alert is triggered (e.g., host isolation, process termination).
2. **Select a Delivery Model:** Choose between **Unmanaged** (in-house setup, configuration, and 24/7 monitoring) or **Managed** (outsourced to a vendor or MSP for day-to-day investigations).
3. **Deploy Agent Analytics:** Ensure the solution uses scalable analytics (like ClickHouse or similar) to process agent data without impacting endpoint performance.
### Long-term Strategy (3+ months)
1. **Human-Led Threat Hunting:** Transition from reactive alert-following to proactive threat hunting. If using a Managed EDR, ensure the provider uses human-led investigations to find threats that bypass automated filters.
2. **Continuous Evaluation:** Periodically test the EDR’s efficacy against modern vulnerabilities (e.g., Log4Shell exploits) to ensure the "Managed" aspect is delivering creative, adaptive defense rather than just automated blocking.
## Implementation Guidance
### For Small Organizations
- **Priority:** Managed EDR.
- **Rationale:** Small teams lack the 24/7 staffing required to handle the high volume of alerts typical of EDR. Outsourcing to an MSP or the EDR vendor ensures security coverage without hiring full-time analysts.
### For Medium Organizations
- **Priority:** Hybrid or Managed EDR.
- **Rationale:** Even with a dedicated IT person, the "alert fatigue" from unmanaged EDR can lead to missed breaches. A managed service allows the internal team to focus on business operations while experts handle the "noise."
### For Large Enterprises
- **Priority:** Unmanaged (Self-Managed) or Co-Managed EDR.
- **Rationale:** Organizations with an established Security Operations Center (SOC) may prefer unmanaged EDR for maximum control and customization, provided they have the staff to manage the underlying data analytics.
## Configuration Examples
*While specific CLI commands vary by vendor, the article emphasizes these core functional configurations:*
- **Data Analytics Pipeline:** Configure telemetry to flow into a scalable backend (e.g., ClickHouse) for historical analysis.
- **Isolation Protocols:** Enable "One-Click Host Isolation" to disconnect compromised machines from the network while maintaining a management tunnel for remediation.
- **Process Insights:** Enable granular monitoring of process executions to detect Log4Shell-style lateral movement.
## Compliance Alignment
- **NIST Cybersecurity Framework:** Directly supports the **Detect** and **Respond** functions.
- **CIS Controls:** Aligns with Control 08 (Malware Defenses) and Control 17 (Incident Response Management).
- **ISO/IEC 27001:** Addresses requirements for monitoring, measurement, analysis, and evaluation of security performance.
## Common Pitfalls to Avoid
- **The "Set it and Forget it" Fallacy:** Purchasing an EDR tool without a dedicated team to watch the alerts. A tool is not a capability.
- **Bundling Risks:** Avoid purchasing security tools solely because they are bundled with RMM (Remote Monitoring and Management) software. Performance and security efficacy should be the primary drivers, not convenience.
- **Over-reliance on Automation:** Automated tools can be bypassed by creative attackers; human-led investigation is necessary for modern threat environments.
## Resources
- **Huntress Blog (Tradecraft & Threat Intelligence):** huntress[.]com/blog
- **Endpoint Detection & Response Handbook:** huntress[.]com/defenders-handbook/endpoint-detection-and-response
- **Managed EDR Overview:** huntress[.]com/blog/not-all-managed-is-created-equally