Posts
ABB encode.exe SRE
ABB encode.exe SRE
· ☕ 12 min read · 🦉 Aidan
Static analysis of an old encoding executable from 1999
picoCTF Riscy Writeup
picoCTF Riscy Writeup
· ☕ 9 min read · 🦉 Aidan

Riscy

Analysis and solution of picoCTF’s RE Hard question Riscy

First contact

First thing was to run file on the provided binary, which yields the following:

1

riscy: ELF 64-bit LSB executable, UCB RISC-V, RVC, double-float ABI, version 1 (SYSV), statically linked, stripped

As expected based on the title, RISC-V. Just a few points of interest, RVC means we can expect to see compressed instructions, which are the same but smaller. e.g. li can become c.li, using half the size for the instruction at the cost of supporting smaller values to load. It’s statically linked, so no external libraries needed, but also that means that’s not a method to attack it. Finally, it’s stripped, which isn’t the end of the world, an ELF will always give us entry.

Password cracking on Beoshock
Password cracking on Beoshock
· ☕ 3 min read · 🦉 Aidan
Using the HPC cluster Beoshock with hashcat and john to crack password for NCL.
Radar scope
Radar scope
· ☕ 4 min read · 🦉 Aidan
A quickly put together system to display nearby aircraft
Looking at ping pong balls
Looking at ping pong balls
· ☕ 3 min read · 🦉 Aidan
Exploring a few different ways to make ping pong balls visible to the ART system.
Hello World
· ☕ 1 min read

Hello World! This is a new post that I’m writing. It needs just a little bit more padding so bear with me. Alright this should be enough.