whoami

Hey! I’m gu4r15m0 — a security enthusiast who loves breaking things to understand how they work.

This blog documents my journey through CTF challenges, vulnerability research, and various security experiments. Most of the content here covers:

• 🎄 SANS Holiday Hack Challenges — Annual CTF writeups from 2016, 2019, and 2022
• 💀 Metasploitable 3 — Comprehensive card-based CTF walkthroughs and exploitation guides
• 📝 Miscellaneous — Phishing analysis, cryptography experiments, and tooling

Tools of the Trade

OS:        Kali Linux
Favorite:  Metasploit Framework
Also:      Nmap, WPScan, Burp Suite, OpenVAS, Wireshark
Languages: Python, Bash

Connect

• 🐙 GitHub: guarismo

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This blog was migrated from Blogger to Jekyll + GitHub Pages in 2026.