Posts

• pwnhub

  CTF   binary exploitation   heap
  Apr 6, 2022

  Various heap exploitation techniques in one challenge

• sandboxgrind

  CTF   sandbox escaping   binary exploitation
  Dec 23, 2021

  Escaping valgrind "sandbox"

• Secure OCaml Sandbox

  CTF   sandbox escaping   ocaml
  Apr 28, 2021

  Escaping OCaml sandbox based on function blacklisting

• sloppy-dev writeup

  CTF   binary exploitation   linux kernel
  Nov 24, 2019

  Intro to exploiting linux kernel modules | writeup from sloppy-dev

• monochromatic writeup

  CTF   binary exploitation
  Aug 16, 2019

  Exploiting use after free vulnerability in chrome via Mojo IPC.

• children_tcache writeup and tcache overview

  CTF   binary exploitation
  Nov 4, 2018

  Exploiting one NULL byte buffer overflow with glibc>=2.26. Also, it introduces the tcache mechanism.

• ssss and ssss2 writeup

  CTF   crypto
  Apr 28, 2018

  Breaking AES counter mode encryption with repeating counter

• Analysis of a Polish BankBot

  RE   malware   android
  Jan 16, 2018

  My analysis of the android banking malware

• Unicorn Engine tutorial

  tutorial   RE
  Jan 14, 2018

  My Unicorn Engine tutorial. Optimizing recursive function; analyzing a shellcode; calling a binary's function; ARM.

• write-up for dont_panic

  CTF   RE
  Nov 19, 2017

  Reverse engineering stripped binary written in Go. I used Intel's Pin tool to count executed instructions to brute-force byte-by-byte.