oussachi

Building a Binary Loader

Tue, 24 Feb 2026 00:00:00 +0000

Introduction Link to heading

Binary loading and analysis are essential in reverse engineering, debugging, and security research. While Linux uses ELF as the standard binary format, manually parsing it is tedious and error-prone.

This project implements a custom binary loader, following the book Practical Binary Analysis, with fixes to the original code to account for changes in function signatures. It uses libbfd, the GNU Binary File Descriptor library, to handle low-level parsing. The loader only loads function symbols and code/data sections, providing a structured and reusable interface.

About

Mon, 01 Jan 0001 00:00:00 +0000

I am Dairi Oussama Abderrahmane (also known as oussachi and agrippa), a computer science graduate with a focus on cybersecurity, networks, and low-level exploitation.

I received my Engineer’s degree (Ingénieur d’État) and Master’s degree from l’École Nationale Supérieure d’Informatique (ESI, Algiers), specializing in computer systems.

Currently looking for full-time opportunities in networking, cybersecurity, systems programming or software engineering. My ideal role would push me technically and let me approach problems creatively.

Curriculum Vitae

Mon, 01 Jan 0001 00:00:00 +0000

Oussama Abderrahmane Dairi Link to heading

Education Link to heading

École Nationale Supérieure d’Informatique (ESI), Algiers
Engineer’s Degree & Master’s Degree – Computer Systems
2022 – 2025

École Nationale Supérieure d’Informatique (ESI), Sidi Bel Abbes
2020 - 2022

Research Experience Link to heading

Research Intern – L3i, La Rochelle (France)
2024 – 2025

Worked on an LLM multi-agent system for automated exploitation of network vulnerabilities.
Designed and implemented a system capable of planning and executing structured exploitation steps.