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Hanzxc/README.md

Hi, I'm Jun Han 馃憢

Cybersecurity student at UOW/SIM with hands-on data center experience from Equinix and Alibaba Cloud, currently building OSCP-track skills in Singapore.

I focus on practical offensive security: Linux, enumeration, web exploitation, privilege escalation, and clear technical writeups. My infrastructure background taught me to care about reliability, procedure, and documentation, not just running tools.

PortfolioResume

Projects

Security tools and implementations I've built, all in standard-library Python.

Project Area What it does
Auto OSCP Recon Notes OSCP workflow Turns local Nmap XML into plain-text notes, service checklists, and a report template for authorized labs
Intrusion Detection System Anomaly detection Learns a baseline from activity data, then flags days that drift too far using weighted deviations against a calculated threshold
Lamport OTP Cryptography Hash-chain one-time password scheme built from the ground up
TOTP Simulator Cryptography Time-based one-time passwords per RFC 6238 in standard-library Python

What I'm doing right now

  • Working through OSCP-track material: enumeration, web app exploitation, buffer overflows, and privilege escalation
  • Practising on Hack The Box and PortSwigger Web Security Academy
  • Building small Python and Bash tools to cut the repetitive parts of recon and reporting
  • Turning study work into clean public projects

Building next

  • Add plain-text Nmap, ffuf, and gobuster imports to Auto OSCP Recon Notes
  • Write short legal lab notes that focus on methodology and lessons learned

Toolkit

Python 路 Bash 路 Linux 路 Git 路 Nmap 路 Burp Suite 路 Gobuster 路 Hydra 路 Hashcat 路 gdb

My angle

My background is infrastructure operations at Equinix and Alibaba Cloud, where uptime, procedure, and documentation are not optional. I'm now building offensive-security fundamentals so I understand attacker behaviour and can contribute to practical defence.

rack -> linux -> scripts -> security notes -> better decisions

For recruiters

I'm aiming for junior cybersecurity, SOC, infrastructure security, or security engineering internship roles in Singapore.

Short version: real infrastructure experience, a deliberate security-first learning path, and the habit of automating and documenting technical work clearly. I'm early in offensive security, but I'm building in public and improving through practice.

Popular repositories Loading

  1. hanzxc.github.io hanzxc.github.io Public

    HTML

  2. Hanzxc Hanzxc Public

  3. intrusion-detection-system intrusion-detection-system Public

    Anomaly-based intrusion detection system simulation in Python

    Python

  4. lamport-otp lamport-otp Public

    Hash-chain one-time password scheme in standard-library Python

    Python

  5. totp-simulator totp-simulator Public

    Time-based one-time passwords (RFC 6238) in Python

    Python

  6. auto-oscp-recon-notes auto-oscp-recon-notes Public

    Python CLI for organizing authorized OSCP-style recon output into plain-text notes

    Python