About

About

Welcome to Kairos_0x.

I am Stuocs (Alfredo), a System Administrator based in Spain currently pivoting into Offensive Security.

Kairos_0x is my personal documentation project—a collection of CTF writeups, malware analysis research, and security methodologies.

My background is deeply rooted in infrastructure. I currently manage an enterprise Active Directory environment, including Domain Controllers, Fortinet firewalls, and MikroTik networking infrastructure. This hands-on experience allows me to identify architectural weaknesses that others might overlook.

My goal is to transition into a full-time role as a Pentester or Cybersecurity Engineer. I am currently preparing for my OSCP certification.

Technical Focus

  • Network Penetration Testing
    • Active Directory Exploitation (Kerberoasting, AS-REP Roasting)
    • Network Discovery & DNS Enumeration
    • Protocol Analysis & Offline/Online Password Cracking
  • Web Application Security
    • OWASP Top 10 vulnerabilities
    • Injection & Inclusion attacks (SQLi, LFI/RFI)
    • Sensitive Data Exposure & Auth Bypass mechanisms
  • Privilege Escalation & Post-Exploitation
    • Linux Internals (SUID/Capabilities Abuse, Hijacking Techniques)
    • Windows Misconfigurations & Kernel Exploits
    • Shell Stabilization & Persistence
  • Forensics & Malware Analysis
    • Static & Dynamic Analysis (Ghidra, x64dbg)
    • Image Steganography & Data Exfiltration analysis
    • Script Deobfuscation & C2 Traffic Analysis

Professional Profiles

These are my primary channels for professional contact and code repositories.

CTF & Training Platforms

I actively sharpen my skills on competitive platforms under different handles. Check my progress here:

Contact