FedRAMP Moderate Authorization Pack

Endpoint Detection & Response Framework — Enterprise Endpoint Security Toolkit

After deploying and tuning EDR platforms across environments where endpoint compromise could lead to CUI exposure or ePHI breach, I built this framework because deploying CrowdStrike or Defender for Endpoint with default policies and calling it "done" leaves 60% of endpoint attack techniques undetected and generates enough false positives to burn out your SOC in 90 days.

The core problem: EDR vendors ship with generic detection models trained on broad datasets. Your environment has specific applications, administration tools, and workflows that create noise patterns unique to you. PowerShell is malicious in one context and a legitimate admin tool in another. Without environment-specific tuning and custom detection rules, your EDR is an expensive log collector.

What You Get

• EDR Deployment Architecture — Sensor deployment guides for Windows (including Server Core), Linux, and macOS. Covers: GPO-based deployment, SCCM/Intune packages, Ansible playbooks for Linux, and sensor update ring strategies (canary, early adopter, general availability) to prevent sensor-caused outages.
• Detection Policy Templates — 50 custom detection rules for techniques that default EDR policies miss: living-off-the-land binaries (LOLBins), DLL search order hijacking, AMSI bypass attempts, credential dumping from LSASS using non-standard tools, PowerShell constrained language mode bypass, and fileless malware patterns.
• Exclusion Management Framework — Structured process for handling false positive exclusions without creating security blind spots. Includes: exclusion request templates, risk assessment for each exclusion, compensating monitoring controls, and quarterly exclusion review procedures.
• Threat Hunting Playbooks — 20 hypothesis-driven hunt playbooks using EDR telemetry: unusual parent-child process relationships, rare executables in common directories, anomalous scheduled task creation, unsigned driver loading, and cloud credential file access patterns.
• Response Automation Templates — SOAR playbooks for automated containment: network isolation triggers, process termination rules, user session revocation, and evidence collection scripts that execute automatically on high-confidence detections.

Brownfield Implementation

Week 1-2: Audit current EDR deployment coverage (aim for 98%+ sensor deployment). Identify unmanaged endpoints. Week 3-4: Baseline environment behavior — catalog legitimate admin tools, scheduled tasks, and service accounts that generate false positives. Week 5-8: Deploy custom detection rules and tune exclusions with compensating controls. Week 9-12: Implement response automation starting with network isolation for high-confidence ransomware detections.

Scope Limitations

Covers Windows, Linux, and macOS endpoint security. Does not cover mobile device security (MDM/MTD), IoT endpoint protection, network detection and response (NDR), or email security gateway configuration. Vendor-agnostic framework but includes specific examples for CrowdStrike Falcon, Microsoft Defender for Endpoint, and SentinelOne.

Audit Evidence

Satisfies NIST SP 800-53 SI-3 (Malicious Code Protection), SI-4 (System Monitoring), SC-7 (Boundary Protection), and IR-4 (Incident Handling). Generates: endpoint coverage reports showing deployment percentage, detection rule efficacy metrics, mean-time-to-contain measurements, exclusion risk assessments, and threat hunting findings reports required for SOC 2 CC6.8, HIPAA §164.308(a)(5), and PCI DSS Req 5 evidence.

Written by Kenny Ogunlowo — Detection Engineer, U.S. Secret Clearance holder. Deployed and tuned EDR platforms at Lockheed Martin and Cigna Healthcare for classified and regulated environments.