@cryptax – Medium

@cryptax

@cryptax

·

Apr 17

What I like / don’t like about Warp Terminal

Disclaimer: I am not affiliated with Warp, I paid my subscription like any regular user. This is my personal opinion, my personal…

What I like / don’t like about Warp Terminal

@cryptax

·

Apr 13

Agent & skills setup for Insomni’hack CTF

“Artificial Intelligence ruins CTFs and easily solves challenges”. Have you tried? I wanted to try and see for myself (1) how difficult the…

Agent & skills setup for Insomni’hack CTF

@cryptax

·

Oct 6, 2025

Rust in your disassembler

At r2con this year, I am going to present how to solve a CrackMe binary written in Rust. As the conference is online, I chose to record it…

@cryptax

·

Aug 25, 2025

Linux/Trigona: analysis with r2ai

Update Aug 26: added reverse engineering of VMWare ESXi features

Linux/Trigona: analysis with r2ai

@cryptax

·

Aug 19, 2025

r2ai with lmstudio and gpt-oss

Background: radare2, nickname “r2”, is an awesome open source disassembler. r2ai is an open source plugin for r2 to communicate with an AI.

r2ai with lmstudio and gpt-oss

@cryptax

·

Jul 4, 2025

Malware W32/SkyAI uses AI? So do I.

A new malicious sample, named W32/SkyAI (or Topozuy, or Skynet), has recently emerged, showing use of a AI prompt bypass attempt. Perfect…

Malware W32/SkyAI uses AI? So do I.

@cryptax

·

Feb 18, 2025

Communication with a Prometei C2 — Part Three

I am analyzing a Linux Prometei sample of February 2025. In Part One, we found out this sample was packed. In Part Two, we analyzed the…

Communication with a Prometei C2 — Part Three

@cryptax

·

Feb 11, 2025

Reversing an (unpacked) Prometei binary with r2 and AI — Part Two

Thanks to Joan Calvet and Gabriel Hung, we unpacked the Prometei binary of Part One, and now have an ELF…

Reversing an (unpacked) Prometei binary with r2 and AI — Part Two

@cryptax

·

Feb 7, 2025

Reversing a Prometei botnet binary with r2 and AI (Part One)

I’ve just laid my hands on a new malicious sample of February 2, 2025 (1 week ago). It is detected as Linux/Prometei.B. I’m going to…

Reversing a Prometei botnet binary with r2 and AI (Part One)

@cryptax

·

Jan 6, 2025

Cracking my own CrackMe with r2ai

Recently, I viewed the excellent “Cracking binaries with r2ai visual mode” by Daniel Nakov, at r2con 2024. In September 2024, I had tried…

Cracking my own CrackMe with r2ai

@cryptax

@cryptax

Mobile and IoT malware researcher. The postings on this account are solely my own opinion and do not represent my employer.

Following

Help

Status

About

Careers

Press

Blog

Store

Privacy

Rules

Terms

Text to speech