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Trac3r00/README.md

Minseo Choi

Security operations and detection engineering practitioner focused on practical tooling, reliable detections, and clear incident response.

About

I work as an Engineer II in Computer Operations Support at Verisign, where I support phishing and threat triage, incident response, and Splunk detection dashboards. I also build detection-engineering and AI-assisted security operations projects in a self-hosted Proxmox lab.

I am pursuing a B.S. in Cybersecurity at the University of Maryland Global Campus.

Featured projects

  • wazuh-ai-siem: A Wazuh-based SIEM and detection-engineering lab with custom MITRE ATT&CK-mapped rules, local-LLM threat triage, natural-language threat hunting, and automated response workflows.
  • siem-detect: A dependency-light Sigma detection engine for syslog, Nginx, authentication, EVTX JSON, and CloudTrail events.
  • phishing-analyzer: A Python phishing-analysis toolkit for .eml parsing, email-authentication checks, IOC extraction, attachment scanning, risk scoring, threat-intelligence enrichment, and STIX 2.1 export.
  • phish-triage: A phishing-email triage toolkit with deterministic parsing, optional VirusTotal and AbuseIPDB enrichment, and Splunk SPL and Sigma detections mapped to MITRE ATT&CK.
  • bob-page: A live profile and status page for Bob, an autonomous AI agent, deployed on Cloudflare Pages and Workers.

Areas of focus

  • Security alert and phishing triage
  • Detection engineering with Sigma, Splunk, Wazuh, and MITRE ATT&CK
  • Security automation and incident-response workflows
  • Python, Bash, and PowerShell tooling
  • Self-hosted infrastructure with Proxmox, Docker, Linux, pfSense, and Suricata

GitHub activity

GitHub contribution streak for trac3r00

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  1. phish-triage phish-triage Public

    Phishing email triage toolkit: .eml parsing, IOC enrichment, detection rules (SPL + Sigma)

    Python

  2. phishing-analyzer phishing-analyzer Public

    AI Phishing Email Analyzer — Streamlit UI + Python detection engine + optional Ollama AI explanation

    Python

  3. siem-detect siem-detect Public

    A dependency-light Sigma detection engine — run Sigma rules over logs (syslog/nginx/auth/EVTX-JSON/CloudTrail) and get MITRE ATT&CK-mapped detections. CLI + 14 bundled rules.

    Python

  4. wazuh-ai-siem wazuh-ai-siem Public

    Self-built AI-powered SIEM & detection-engineering lab on Proxmox — full Wazuh stack, 11+ MITRE ATT&CK-mapped rules validated with real attacks (Kerberoasting, AS-REP Roasting, Pass-the-Hash), LLM …

    Python

  5. simpletool-app simpletool-app Public

    Unified SimpleTool App (Cloudflare Worker)

    JavaScript

  6. agent-guards agent-guards Public

    Agent Guards for long-lived AI agents: context-budget (audit per-turn token weight, fail CI on bloat) + claim-audit (flag unverified factual claims). Standalone tools + CI-ready, Claude Code / Code…

    Python