Hey, I'm Kat! I currently do Mobile Security @ Riscure, specifically in the area of mobile payments. In general, I am interested in the following areas:

  • Software Engineering (C++, Rust, Java, ...)
  • Software Security
  • Reverse Engineering
  • Malware Analysis
  • Game Hacking & Modding

Education

  • MSc Computer Security @ Vrije Universiteit
    • Thesis: Environmental Fuzzing for Malware Evasion
  • BSc Computer Science @ University of Crete
    • Thesis: Reverse Engineering Federated Learning Models through Side Channels

Challenges

I enjoy writing CTF challenges as much as I enjoy playing them, so here is a list of some of my reverse engineering challenges that were used in various HackTheBox CTFs:

  • [Insane] License Generator (Malware w obfuscated shellcode, C2 traffic, anti-debug, API hash resolving, custom multi layer encryption)
  • [Hard] Vessel Cartographer (Malware w anti-debug, API hash resolving, shellcode AES)
  • [Medium] Alien Saboteur (Virtual-Machine obfuscated crackme)
  • [Easy] Intelligence Service (Control flow obfuscation through indirect calls, return address obfuscation)

Contact

GitHub: https://github.com/verd1c