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r3b00t // IT Security Administrator

Sysadmin turned security professional. I break things to understand how to protect them — documenting my CTF journey, projects, and the occasional beat I produce along the way.

View CTF Writeups

Badges & Achievements

Unlocked achievements from HackTheBox, TryHackMe and CTF competitions.

King Badge
King
League Sapphire Badge
League Sapphire
500 Day Streak Badge
500 Day Streak
750 Day Streak Badge
750 Day Streak
AI Security Path Badge
AI Security Path
Windcorp Badge
Windcorp
Wreath Badge
Wreath

Certificates

AEVO /AdA Certificate

2025

IHK - Gießen/Friedberg

Certified Penetration Tester (CPTS)

2023

HackTheBox Academy

Ethical Hacking Certified Professional

2022

Hacking Academy

Securepoint Professional

since 2022

Securepoint Academy

ESET Professional Certification Suite

since 2019

ESET

Projects & Infrastructure

SIEM Deployment

Zentralisiertes Security Information and Event Management mit Wazuh. Echtzeit-Überwachung und Threat Detection über das gesamte Netzwerk.

Wazuh Proxmox IKEv2

Firewall & Network Security

pfSense-basierte Firewall-Lösung mit VLAN-Segmentierung und erweiterten Sicherheitsrichtlinien für Netzwerk-Isolation.

pfSense Raspberry Pi VLAN

UTM & Endpoint Security

Unified Threat Management mit Securepoint UTM für zentrale Bedrohungserkennung und Endpoint-Schutz.

Securepoint UTM Networking

Compliance & Governance

ISO 27001 Standards und NIS2-Richtlinien Implementierung für Datenschutz und regulatorische Anforderungen.

ISO 27001 NIS2

CTF Platform

Regelmäßige Teilnahme an HTB und THM Challenges mit dokumentierten Writeups und Lernfortschritt.

HTB THM Kali

Automation & Scripting

PowerShell-basierte Automatisierung für Windows-Server und Python-Skripte für Linux-Systeme.

Hyper-V PowerShell Python

Skills & Tools

Offensive Security

Penetration Testing, Vulnerability Assessment, Exploit-Development und Web Application Security Testing.

Metasploit Nmap Burp Suite SQLmap Lockpicking Social engineering

Defensive Security

SIEM-Administration, Incident Response, Log-Analyse und proaktive Threat Detection.

Wazuh Suricata OSSEC ELK Stack

Infrastructure & DevOps

Server Management, Cloud Security, Network Design und Virtualisierungs-Technologien.

Proxmox pfSense Linux Docker

Gadgets

Hardware, das im Feld zum Einsatz kommt.

🐬 Flipper Zero

is a portable multi-tool that can analyze and emulate signals such as radio, infrared, NFC, and RFID.

🐢 Lan Turtle

is a compact device for network administration, monitoring, and security testing. It can be used to analyze network connections and perform various network-related tasks.

🦈 Shark Jack

is a portable device designed to assess and analyze wired networks. It can automate network reconnaissance and security-testing processes.

📡 WiFi Pineapple Pager

is a portable wireless-security device for analyzing and testing Wi-Fi networks. Its compact design makes it suitable for mobile security assessments.

🐿️ Packet Squirrel

is a small network-security device used to capture and analyze network traffic. It can also help with network testing, troubleshooting, and traffic inspection.

🦆 Rubber Ducky

is a programmable USB device that acts like a keyboard when connected to a computer. It can automatically enter pre-programmed keystrokes for automation and security testing.

🦠 Febris Pro

is an advanced wireless-security module designed for the Flipper Zero. It features multiple radio modules, dedicated antennas, and support for tools such as Marauder and Ghost ESP for Wi-Fi analysis and security testing

🔌 OM.G Cable

is a USB cable designed for advanced security testing and demonstrations. It looks like a regular charging cable while containing additional electronic capabilities.

📶 WiFi Pineapple Mark VII

is a wireless penetration-testing platform for evaluating Wi-Fi networks. It provides tools for wireless analysis, network monitoring, and security research.

Operating Systems

⚙️Arch Linux

Primäres OS – Rolling Release mit voller Kontrolle und minimalistischem Aufbau.

Mehr lesen →

🦜Parrot OS

Security-fokussiertes Linux für Penetrationstests und sichere Kommunikation.

💀Kali Linux

Standard-Distribution für Ethical Hacking mit umfangreicher Toolsammlung.