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heinricitorgau/README.md

Hi, I’m KAO,EN-TSAI

Computer Science Undergraduate
Systems · Networking · Security-minded Engineering

I’m an undergraduate Computer Science student interested in systems, networking, and security-oriented engineering.

I usually learn by building small, controlled, reproducible labs—focusing on how systems communicate, how behaviors become observable at the OS / network level, and how we can reason about them from a defensive perspective.

Featured Project

Automated University Admission Requirements Analyzer

A work-in-progress personal project under active development.
Details regarding design, methodology, and implementation are intentionally withheld at this stage.

Further disclosure will be made after the project reaches completion.

Technical Focus Areas

  • Linux system fundamentals
  • Networking and socket-based communication
  • Process behavior and system observability
  • Security awareness through controlled experimentation
  • Practical automation with Python / Bash

Learning Philosophy

I learn best by building minimal, testable systems and studying their behavior.

Instead of treating tools as black boxes, I focus on:

  • understanding why something happens
  • identifying where it becomes observable
  • documenting how it can be constrained or mitigated

Tools & Environment

  • Languages: Python, Bash, HTML, Ruby, php
  • Systems: Linux (Debian-based)
  • Virtualization: VirtualBox
  • Networking & Analysis: Wireshark

Ethics & Usage Notice

All experiments and projects are conducted for educational and research purposes only,
on systems I own and/or isolated environments.

Contact

📍 Hsinchu, Taiwan
📧 ek2412045@gmail.com
GitHub: https://github.com/heinricitorgau

Popular repositories Loading

  1. Offense-to-Defense-A-Kali-Linux-Guide-to-Reverse-Shells-and-Backdoors Offense-to-Defense-A-Kali-Linux-Guide-to-Reverse-Shells-and-Backdoors Public

    Demonstrates a full penetration workflow on a lab target: scanning, exploitation, reverse shell establishment, privilege escalation, and defensive validation.

    Shell 1

  2. heinricitorgau heinricitorgau Public

  3. Implementation-of-Fake-Wi-Fi-Hotspot-and-Phishing-Login-Page-Attack Implementation-of-Fake-Wi-Fi-Hotspot-and-Phishing-Login-Page-Attack Public

    Simulates a rogue Wi-Fi access point and a phishing login portal in an isolated lab to demonstrate credential-theft risks and to teach user awareness.

    HTML

  4. Development-of-a-Dynamic-Identity-Hiding-System-Combining-Tor-and-SOCKS5-Proxy Development-of-a-Dynamic-Identity-Hiding-System-Combining-Tor-and-SOCKS5-Proxy Public

    Demonstrates a full penetration workflow on a lab target: scanning, exploitation, reverse shell establishment, privilege escalation, and defensive validation.

    Python

  5. Experimental-C2-Architecture-and-Cyber-Defense-Analysis Experimental-C2-Architecture-and-Cyber-Defense-Analysis Public

    Builds a simplified Command & Control (C2) prototype to study remote command execution and file transfer patterns, while exploring detection strategies from a defensive perspective.

    Python

  6. Web-Vulnerability-Attack-Defense-and-Patch-Experimentation-on-the-RailsGoat-Application Web-Vulnerability-Attack-Defense-and-Patch-Experimentation-on-the-RailsGoat-Application Public

    Reproduces SQL Injection and Stored XSS vulnerabilities in the RailsGoat application and demonstrates secure patching and verification techniques.

    Shell