NoMoreXOR.py

Help guess a file's 256-byte XOR by using frequency analysis.

Platforms: Linux · License: Free, unknown license · Last verified September 6, 2026

Help guess a file’s 256-byte XOR by using frequency analysis.

Only use this tool against systems you own or are explicitly authorized to test — see the disclaimer.

Getting started

Preinstalled on REMnux. See the official REMnux tool listing and upstream website linked above for details.

Ubuntu-based toolkit for reverse-engineering and analyzing malicious software