About Me
Hey there! 👋
I’m Jaco, a cybersecurity professional passionate about low-level systems, exploit development, and understanding how things work under the hood.
🛡️ Current Role
I’m currently working as a Cyber Security Evaluator at jtsec Beyond IT Security , where I focus on:
- Web Application Penetration Testing — My main area of expertise
- Mobile Application Security — Android & iOS assessments
- EDR Evaluations — Testing endpoint detection and response solutions
- Security Certifications — Common Criteria evaluations
🎯 Technical Interests
While my day job focuses on pentesting, my personal research and learning revolves around:
Offensive Security & Red Team
- Malware Development — Creating evasion techniques, loaders, and understanding AV/EDR internals
- Exploit Development — Buffer overflows, ROP chains, SEH exploitation, ASLR bypasses
- Shellcode Engineering — Custom shellcodes, encoders, and egghunters
Low-Level & Systems
- Windows Internals — PE parsing, WoW64, memory management
- OS Internals — Understanding how operating systems manage processes, memory, and security
- Reverse Engineering — Analyzing binaries and understanding protection mechanisms
Current Learning Path
- Studying for OSED (Offensive Security Exploit Developer)
- Deep diving into Windows kernel exploitation
- Exploring EDR bypass techniques and AMSI evasion
🏆 Certifications & Training
- Sektor7 Malware Development Essentials
- OSED preparation (ongoing)
- More to come…
💡 Why This Blog?
I created this blog for two main reasons:
- Personal Knowledge Base — My memory isn’t the best, so documenting what I learn helps me retain and revisit concepts
- Sharing Knowledge — Contributing back to the security community that has taught me so much
Most content here covers malware development, exploit development, and OS internals. In the future, I’d like to develop comprehensive courses covering these topics.
📬 Get in Touch
Feel free to reach out through my socials (icons at the top) if you want to:
- Discuss security research
- Collaborate on projects
- Point out errors or improvements in my posts
- Just say hi!
Navigate to the Posts section to explore my technical writeups.
See you around! 🚀
— jaco