Github Projects

A selected list of my open source projects published on github.


Uses program synthesis to deobfuscate VM instruction handlers used by obfuscators such as VMProtect and Themida. Published at USENIX Security 2017.


An AFL style feedback fuzzer, that uses Intel-PT to trace operating systems without access to sourcecode. Published at USENIX Security 2017

Interval Tree

A very efficient data structure to query ranges for Rust. Useful to implement analysis passes on memory/code/firmware dumps.

Loaded Dice

Sample from discrete distributions in O(1). Very useful when building randomized generators and fuzzer in Rust.

A one day workshop on using SMT-Solvers and bounded model checker for reverse engineering and binary analysis.


A human friendly pwgen based on XKCD 936


A ruby programmable debugger library based on the linux ptrace API and /proc/$pid/ interfaces.


Robust semantic hashes for arbitrary x86 functions. Identify functions in very large database, even when compiled with different options.

Cornelius Aschermann

Fuzzing, Reverse Engineering, Binary Analysis

Security Researcher