Articles by Fred Raynal

7 articles
Date Tue 14 December 2021
Authors Fred Raynal, Mihail Kirov
Category Containers

It is written almost everywhere: do not expose the Docker socket on Linux! This is followed by the statement that doing so grants root access to the host. But why? What can be done and how? This is what we are about to explore in this article.

Date Thu 21 June 2018
Author Fred Raynal
Category Life at Quarkslab

This year has been very fruitful for Quarkslab with lots of research, new challenges, newcomers, open source success. It is now a tradition to look back at what we have done during a small conference named “Quarks in the Shell” or just "QITS", where we share the year experience with our customers, partners and friends. QITS meeting is one of the output channels for our research work that is also reflected in internal tools, our open-source projects (e.g. Triton, LIEF and QBDI), and our products (IRMA Enterprise and Epona).

Date Mon 24 October 2016
Author Fred Raynal
Category Life at Quarkslab

EDIT: All positions are filled

Every year, we are looking for young and adventurous students, with promising skills, eager to dig deeper into the field of security through its more technical side. The topics we propose are complex, challenging and will require a lot of efforts and sweat. But in the end, you will get the satisfaction to have learned a lot about security. All this without emphasizing enough the opportunity to work with the sometimes weird but always amazing Qb crew, especially when it comes to humour or training a Padawan.

All trainings are to be done in our main office in Paris, France. We encourage remote working, but that does not apply to trainings where the Padawans need to be among the team. That means the applier will need to have the proper visa to work with us if required.

Last but not least, we usually train Padawans so that they remain with us once the training period is done, even if that does not mean the training is over :)

Date Wed 09 March 2016
Authors Fred Raynal, Serge Guelton
Category Programming

Open sourcing binmap, a tool to scan filesystem and gather intel on which binaries are there, what are their dependencies, which symbols they are using and more. This yields a global view of a system, providing the basic block for building other tools!

Date Mon 30 November 2015
Author Fred Raynal
Category Life at Quarkslab

Chaque saison, des nuées de stagiaires quittent les réconfortants bancs de l'école pour rejoindre le monde sans pitié du travail. Afin de faciliter cette transition, nous, à Quarkslab, proposons des stages avec des sujets pointus, un encadrement sans complaisance mais néanmoins chaleureux, un régime alimentaire digne de sportifs de haut niveau (indispensable pour tenir le rythme), et un humour imperméable aux blagues qui ne font pas toujours un tabac. Si toi aussi tu aimes les défis, engage toi avec nous !

Date Wed 22 October 2014
Author Fred Raynal
Category Life at Quarkslab

Quarkslab propose plusieurs stages, certains sujets pouvant aussi être aussi traités sous forme d'alternance. Ca touche à des tonnes de domaines : recherche de vuln, analyse de code, crypto, compilation, reconnaissance réseau, malware et réponse à incidents. Bref, il y en a pour tous les goûts.

Date Wed 15 August 2012
Author Fred Raynal
Category Cryptography

What was really stunning about Stuxnet and its cousins was it was "open source". Once the sample was captured, it was big to analyze, but none of its embedded secrets could escape a malware analyst. And it had many secrets! From an engineering point of view, the architecture and design are clean and efficient, which makes Stuxnet a good example to learn how to design malware. From an intelligence point of view, knowing what is targeted is valuable. For a money point of view, considering how governments are racing to buy 0 days, Stuxnet was above expensive. And all this was wasted because the payload was unprotected!