cryptax.bsky.social

Want to hear #Rust #metamorphic #malware, early bird APC, module stomping, #Android TV botnets, ransomware encrypting #LLM training files and more? All of this was at @virusbtn.bsky.social last week. An excellent edition! My notes of what I personally learned: cryptax.github.io/posts/vb2026/

Even 3 or 4 are too much :D

This week, I am at @virusbtn.bsky.social and so happy to present again. It's a "simple case" - convincing bank fraud - which can potentially hit 15% of the population ! Defeats security measures by social engineering. What happens when you trust the wrong person? Come and hear live.

Blogged on Labuba RAT: cryptax.github.io/posts/labuba... My blog post is focused on reversing some anti-analysis features of the malware. For a general (technical) overview of the malware, read this blackpointcyber.com/blog/labub

Join Axelle Apvrille from Fortinet at VB2026 in Seville for a walkthrough of a real cyber incident that targeted an 89-year-old man in February 2026, revealing the full process used by the cybercriminals. 📅 Oct 15 | 09:30-10:00 | Red Room 👉 tinyurl.com/mrxpt752

How 100 hospitals switched to pen and paper to defeat a national cyber-attack. Here is our in-depth 10 minute YouTube documentary which we produced about the incredible response of Romanian cyber security teams and the unseen heroics of doctors and nurses in 2024. www.youtube.com/watch?v=WxY6...

Back from Capture The Evidence v2 organized by @eternalblue-off.bsky.social . It's an investigation-oriented CTF. All challenges and scenario are in French, but my blog is in English to motivate you to learn French and participate to the next edition ;P cryptax.github.io/posts/cte-v2/

Last Friday, I was at Auvergn'hack, a small single-tracked conference in the middle of France. A very friendly atmosphere, beautiful weather, great venue, and several very interesting talks. cryptax.github.io/posts/auverg... #landlock #opencode #auvergne #quantum #crypto #conference #CTF

Can't make it to NorthSec conferences this year? We got you covered! Talks will be livestreamed on Youtube on starting Thursday morning at 9:00, Eastern Time. ⏯️ Youtube playlist: www.youtube.com/playlist?lis...

If you want to learn to use #AI #agents and #skills, my new blog post might interest you. It's about the setup I used to play @1ns0mn1h4ck.bsky.social CTF. Obviously, this is *not* the way to go to learn #CTF skills... cryptax.medium.com/agent-skills...

Inscription au CTE L’enfer numérique de la RGPACA 🚓 Inscrivez vous en suivant le lien suivant : 🔗 grist.numerique.gouv.fr/o/docs/forms... 🚨 Chaque équipier doit s’inscrire : vous recevrez un e-mail au plus tard 7 jours après votre inscription, pour vous signifier sa bonne prise en compte.

Ph0wn Mag #3 eZine is out! With writeups of FrangiPh0wn (teaser of Ph0wn) and Ph0wn CTF 2026 github.com/ph0wn/writeu...

What's particularly cool about Ph0wn CTF? 1. It's onsite. If you haven't ever been to an onsite CTF, you absolutely must. 2. It's dedicated to connected devices, so you get to interact with tons of equipment! 3. The challenges are really awesome, yes, yes. Register at ph0wn.org - March 13/14

Oh? Rust based keylogger?!

Ce mardi 3 mars 2026, une éclipse totale de Lune se produit. Une partie de la planète aura l’occasion de voir le satellite prendre une teinte rougeâtre, ce qui amène parfois à l’appeler « Lune de sang ». #PosterCarto de la #Lune ! :) 👇 le-cartographe.net/publications...

Can AI Agents detect some hidden Backdoors in Binaries? Experiments with Code injected in C/Rust Projects, then analyze of resulting Binary with AI Coding Agents + access to reverse engineering Tools (Ghidra, Radare2, and binutils) #ReverseEngineering #AI quesma.com/blog/introdu...

👁️🌌 La nébuleuse de l’Œil du Chat comme vous ne l’avez jamais vue ! Grâce à Hubble Space Telescope et Euclid, une nouvelle image spectaculaire révèle les derniers instants d’une étoile à 4 300 années-lumière. 👉 À lire ici : cnes.fr/actualites/i... #Cnes @esa.int @ec-euclid.bsky.social

Reminds me of ph0wn teaser !! #ctf

I spy a Phrack gnome in the latest FIRE #ansi pack! Thanks @nail7.bsky.social, it's so cool!

⏰Time to register to ph0wn CTF now! There are also a few remaining seats to the Embedded Rust workshop, where you'll implement the 🐍Snake game on Micro:Bit. Don't forget your pirate costume 🧙‍♀️for the Creative Contest, and your xploits for ph0wn2own! ph0wn.org

This piece of code (Arduino) is vulnerable. What's the best fix? Comment. Don't know, or want to discuss about it? Come to ph0wn in Sophia Antipolis on March 13-14: ph0wn.org (free, registration required).

Replay de Mardi dernier ⬇️ En vous souhaitant une belle journée 🌻 www.youtube.com/live/asGIbQg...

For ph0wn registration, we see that many of you are struggling to put several items in your cart and consequently create x different registrations. It's simple. In pretix, you need to click on "Add tickets for a different date". Then select an other "event" : CTF, social event, workshop. #ph0wn

Hoy ⚔️ Next Stream : FrangiPh0wn CTF - What, How, Who, WriteUps! 💣 👉 Mardi 17 Fevrier à 21h Ft. @Cryptax , Miaou, YoyoChaud 👉 Join Live www.twitch.tv/thelaluka 👉 Discord Events discord.com/events/11337...

Are you stuck on one of the first 2 challenges of #FrangiPh0wn? As the teaser ends in 2 days, we've released a few hints, and hope they will help you reach the next level ;) ctf.ph0wn.org #RF #OSINT #AI #retrogaming #ph0wn #CTF

📅 March 13-14, 2026 - Sophia Antipolis, France 🤠 Prepare your best outfit for Ph0wn CTF's side event: the "Creative Contest". Come dressed up as a pirate, and get a chance to win a Hydrabus 😃 👉️ Details: ph0wn.org/contest/ #CTF #ph0wn2026 #pirate #flagship #hydrabus #hacker Re-posts appreciated

All hands on keyboard, pen to paper - Elbsides 2026 Call for Paper is open!!! Make good on your New Year resolution to contribute to the infosec community and present on June 5th in Hamburg. www.elbsides.eu/2026/cfp/ #elbsides2026 #CFPisopen #startwriting #infosec

FrangiPh0wn, the Ultimate Galette for Hackers and ph0wn CTF teaser, is up until Feb 9. Head to ctf.ph0wn.org, and find the trinkets! Are you up to it? Only 15 participants flagged something up to now. Go for it! #CTF #teaser #RF #OSINT #ph0wn #frangiph0wn

Ph0wn #CTF Teaser Announced for January! We hope you get the right tools and skills for Xmas :D Get ready! We will announce #FrangiPh0wn in January. Keep an eye on ph0wn.org

Best talks, papers, CTF challenges, tools I encountered in the second half of 2025: cryptax.github.io/nomination-2... Congratulations to those who are listed, and kudos to others :) cc: @trufae.bsky.social @uybhys.bsky.social @nst021.bsky.social @synacktiv.com

Variants of 2025 of Symbiote and BPFDoor support IPv6, UDP communication with C2. Reverse engineering the samples with r2ai and r2mcp. www.fortinet.com/blog/threat-... #malware #Linux #BPF #r2ai #r2mcp

Pour mon atelier "Reverse engineering with r2ai" à @uybhys.bsky.social demain, si vous avez un laptop x86, téléchargez en avance l'image: docker pull cryptax/r2ai:2025.11 #radare2 #IA #r2ai #UYBHYS25 #docker #workshop

#UYBHYS A l'occasion de #UYBHYS25, de 10h à 17h les vendredi 7 et samedi 8 novembre, @ratzillas.bsky.social animera, sur le parvis du #Quartz à #Brest, un atelier de démonstration de "Car Hacking", accessible à toutes et tous sans inscription. 🙂

#UYBHYS #UYBHYS25 #Brest Il reste encore des places pour quelques ateliers de vendredi et pour la journée de conférences de samedi. Billetterie : pretix.eu/cantine/UYBH...

Barb'hack is over and it was a pleasure to attend: very nice folks, friendly organizers, excellent food, best rumps lol and a CTF with a videogame interface+ challenges on Minitel. I loved it! Kudos to the staff. #barbhack25

I've very happy to speak at Barb'hack on Saturday. barbhack.fr/2025/fr/conf... There will be 2 demos. One live. One recorded - simply because I don't have the guts to do it live ;P We reverse engineer Linux/Trigona and Linux/Shellcode with radare2 + AI + HI HI standards for Human Intelligence ;P