The author shares their experience of finding a vulnerability in the GenAI Genesis 2025 AI hackathon application process, allowing them to accept their own application before the official deadline. They detail the steps they took ...
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fastcall is the author of a blog focused on development and reverse engineering. The blog, titled 'fastcall's blog', provides insights and information related to these topics.
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The text is a writeup of the magpieCTF 2025 SMalwareTP challenge. The author analyzes a binary file to investigate malware found on Christina Krypto’s computer. The author decodes base64 chunks, analyzes string manipulations, and ...
The text contains writeups for reverse engineering challenges in Black Hat Bureau CTF 2025. It includes details of the challenges, code snippets, and the process of solving each challenge. The challenges include Simple Dimple, Sta...
The text is a writeup for the golang2 rev challenge at BTCTF 2024. The author discusses the challenges faced, tools used, and the process of reverse engineering the binary. The post also includes a post-mortem of the challenge, de...
The challenge involves reverse engineering a Godot game, which is encrypted. The author initially struggled to extract the encryption key, but eventually found a solution. The issue was fixed and pushed via a new release during th...
The text is about the writeups for all the reverse engineering challenges in Espionage CTF 2024. It includes the challenges Coin Hunt, Skull, Top Secret, and Scrambled Squares. The challenges involve reverse engineering, encryptio...