$ whoami
Gabriel Martí (@gabimarti) · Spain
Cybersecurity Consultant · Reverser · Ethical Hacker · Developer
$ cat about.txt
In tech since 1986: started as a developer, ended up in cybersecurity,
and never stopped coding.
MSc in Cybersecurity, La Salle (Barcelona): thesis on keyloggers and
reverse engineering, with honours.
Trainer and teacher since the early days. Self-taught since the 8-bit era.
$ cat interests.txt
reverse engineering · malware analysis · web security · red team
forensics · cryptography · wireless communications · ham radio
$ cat motto.txt
Always learning a little bit of everything. There is always something to learn.- Reverse engineering & malware analysis — taking binaries apart (desktop, mobile, embedded), crackmes, keyloggers
- Offensive security & AppSec — pentesting, security audits, code review, SAST / DAST / SCA on web and mobile apps (Android, iOS)
- Security R&D — leading development of security products for wireless environments (hardware & software)
- Defensive & GRC — hardening, endpoint monitoring (Wazuh, Fleet / osquery), Microsoft 365 / Entra / Intune policies, ENS & ISO 27001
- AI-assisted engineering — Python with autonomous agents, MCP and LLMs for secure code generation and automation
- Teaching — C programming, systems administration, ethical hacking and reverse engineering
Languages 
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Reversing 
Offensive / AppSec 
Defensive 
AI engineering 
Systems 
Legacy 
-555555?style=flat-square){kind=icon}
- analitix (website) — Privacy-first personal health tracker. Desktop app that reads lab test reports (PDF), stores the results in an encrypted database and charts how they evolve over time.
- crackmes-solutions — Solutions to some crackmes I have done
- ghidra_scripts — Simple scripts to aid analysis in Ghidra
- ingenieria_inversa_a_partir_del_codigo_fuente — Small C programs analysed in Ghidra / radare2 to understand the disassembly
- TFM-Analisis-Keyloggers-Ingenieria-Inversa · Demons-eye-keylogger — MSc thesis: keylogger analysis and PoC
- SMBScanner — Multithread SMB scanner for CVE-2020-0796 (SMBGhost)
- pscan — Multithread network scanner
- php-in-security — Small pieces of PHP code related to (in)security
- cifradoXOR — XOR cipher examples in C
- CHECKVIR — Old QuickBASIC + ASM interrupt calls to protect 80's/90's disks from viruses
🗣️ Spanish · Catalan · English
