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NoMoreXOR.py (T)

Python utility for recovering long XOR keys using character frequency heuristics and YARA-assisted pattern matching.

encoding-decoding
Official docs ↗

Platforms: Web · Last verified September 7, 2026

Python utility for recovering long XOR keys using character frequency heuristics and YARA-assisted pattern matching.

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

Getting started

Best for: Recovering long XOR keys in malware binaries. See the official site linked above for details.