🎄 TryHackMe – Advent of Cyber 2025 🎄

Daily Hands-On Cybersecurity Practice & Documentation

Welcome to my Advent of Cyber 2025 repository. This project documents my daily cybersecurity learning, hands-on challenges, and practical skills developed through TryHackMe’s annual Advent of Cyber event.

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🎯 Purpose of This Repository

This repo is my personal way of tracking what I learn each day, practicing new tools, and improving my understanding of cybersecurity concepts.

• This is not just a challenge log — it’s a portfolio piece demonstrating:

• My ability to learn cybersecurity concepts rapidly

• Hands-on experience with real tools

• Documentation and communication skills

• Consistency and discipline

• A realistic simulation of SOC analyst workflows

Each day includes:

✔ Explanation of the task

✔ Tools used

✔ Key takeaways

✔ Cybersecurity concepts

✔ Step-by-step summaries

✔ Screenshots of the process (never the answer/flag)

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🗂️ Repository Structure

/Day01
   README.md
   /screenshots
       tool_output.png
       process_step.png
       task_complete.png

/Day02
   README.md
   /screenshots
       ...

...

/Day24
   README.md
   /screenshots   

Each folder contains:

• A detailed daily report

• Screenshots demonstrating the methodology

• Notes on tools, techniques, and what I learned

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🛠️ Tools Used Throughout This Project

Some of the tools and technologies I use across the 24 days:

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📚 Skills Practiced

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🧠 Key Focus Areas for 2025

My personal learning goals during this project include:

• Strengthening defensive security knowledge

• Improving analysis and reporting skills

• Building a consistent cybersecurity learning habit

• Preparing for future internship opportunities

• Getting more comfortable with common SOC tools

• Developing practical, hands-on experience

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📅 Daily Progress Tracking

I will update this repo every day during Advent of Cyber.

Day	Status	Topic
Day 1	✅ Completed	Linux CLI
Day 2	✅ Completed	Phishing
Day 3	✅ Completed	Splunk Basics
Day 4	✅ Completed	Ai in Security
Day 5	✅ Completed	IDOR
Day 6	✅ Completed	Malware Analysis
Day 7	✅ Completed	Network Discovery
Day 8	✅ Completed	Prompt Injection
Day 9	✅ Completed	Passwords
Day 10	✅ Completed	SOC Alert Triaging
Day 11	✅ Completed	XSS
Day 12	✅ Completed	Phishing
Day 13	✅ Completed	YARA Rules
Day 14	✅ Completed	Containers
Day 15	✅ Completed	Web Attack Forensics
Day 16	✅ Completed	Forensics
Day 17	✅ Completed	CyberChef
Day 18	✅ Completed	Obfuscation
Day 19	✅ Completed	ICS/Modbus
Day 20	✅ Completed	Race Conditions
Day 21	✅ Completed	Malware Analysis
Day 22	✅ Completed	C2 Detection
Day 23	✅ Completed	AWS Security
Day 24	✅ Completed	Exploitation with cURL

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👋 About Me

I’m studying Cloud Development (Java & AWS), but I’ve realized I enjoy working with cloud infrastructure and cybersecurity much more than writing code. I’m focusing on building skills in cloud engineering, security, and hands-on problem solving — areas I find both more engaging and more aligned with my future goals.

This repository helps me stay consistent, structured, and focused while building practical skills.

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📬 Contact

LinkedIn: https://www.linkedin.com/in/tonyjokiranta/

GitHub: TeeDjaay99

Location: Sweden