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jtechprojects/README.md

Joel Rodriguez

Cybersecurity | Detection Engineering | Malware Analysis | Network Security

I'm an aspiring cybersecurity professional focused on building practical skills through hands-on labs in network security, Windows enterprise administration, detection engineering, and malware analysis.

My cybersecurity portfolio is built around a physical homelab that I designed using repurposed Dell OptiPlex systems, Proxmox VE, pfSense, Windows Server, Linux, Kali Linux, and Wazuh.

Rather than completing isolated labs, I've continued expanding the same environment into progressively deeper cybersecurity projects.

🛡️ Cybersecurity Portfolio

🖥️ Cybersecurity Homelab

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Built a physical and virtual cybersecurity environment using Proxmox, pfSense, Windows Server, Linux, Kali Linux, and multiple virtual machines.

Focus: Infrastructure · Virtualization · Networking · Security Testing


🔥 Network Security & pfSense Lab

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Configured and tested firewall policies, aliases, traffic filtering, packet capture, and network-security controls using a dedicated physical pfSense firewall.

Focus: pfSense · Firewalling · Nmap · Packet Analysis · Network Security


🏢 Active Directory Security Lab

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Built a Windows enterprise environment with Active Directory, domain users, security groups, Group Policy, DNS, and domain-joined endpoints.

Focus: Active Directory · Windows Server · Group Policy · Identity & Access


🔎 Wazuh Detection Engineering Lab

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Built a detection-engineering workflow using Wazuh, Sysmon, Windows Event Logging, and PowerShell telemetry. Developed custom detections, tested detection gaps, mapped activity to MITRE ATT&CK, and performed rule tuning.

Focus: Wazuh · SIEM · Sysmon · MITRE ATT&CK · Detection Engineering


🦠 Malware Analysis Sandbox

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Built an isolated Proxmox malware-analysis environment using Windows 10 and REMnux. Developed a custom Python triage tool, performed static and dynamic malware analysis, simulated network services, and created original YARA detection rules.

Focus: Malware Analysis · Python · YARA · REMnux · Static & Dynamic Analysis

🧰 Technologies & Tools

Security Wazuh YARA Sysmon Nmap Metasploit REMnux INetSim

Networking & Infrastructure pfSense Proxmox VE TCP/IP DNS DHCP SSH

Windows & Enterprise Windows Server Active Directory Group Policy PowerShell

Systems & Development Linux Kali Linux Ubuntu Python Git GitHub

🎯 Current Focus

I'm continuing to develop practical cybersecurity skills with an emphasis on:

  • SOC and security analysis
  • Detection engineering
  • Malware analysis
  • Network security
  • Windows security
  • Security automation

📂 Portfolio

My complete cybersecurity lab environment and the progression of projects built on top of it are documented here:

Pinned Loading

  1. active-directory-security-lab active-directory-security-lab Public

    Active Directory security homelab featuring OUs, users, security groups, GPOs, access controls, department drive mapping, and policy validation.

  2. cybersecurity-homelab cybersecurity-homelab Public

    Physical cybersecurity homelab built with repurposed Dell OptiPlex systems, Proxmox, pfSense, Windows, Linux, Active Directory, Wazuh, and Kali Linux.

  3. malware-analysis-sandbox malware-analysis-sandbox Public

    Isolated Proxmox malware analysis sandbox featuring custom Python automation, static and dynamic analysis, REMnux network simulation, and original YARA detection rules.

  4. pfsense-network-security-lab pfsense-network-security-lab Public

    Hands-on network security lab using pfSense to configure firewall rules, DHCP reservations, host aliases, traffic controls, packet capture, and firewall validation within a physical cybersecurity h…

  5. wazuh-detection-engineering-lab wazuh-detection-engineering-lab Public

    Hands-on Wazuh detection engineering lab using Sysmon, Windows telemetry, custom rules, MITRE ATT&CK mapping, alert triage, testing, and rule tuning.