Advent Of Configuration Extraction – Part 4: Turning capa Into A Configuration Extractor For TinyShell variant

This report presents a technical walkthrough for extracting configuration data from a stripped Linux backdoor (TinySHell variant). It demonstrates using FLARE capa to locate an RC4 decryption routine, Capstone to reconstruct stack-based RC4 keys, LIEF to read encrypted blobs from the .rdata section, and malduck to decrypt the configuration, ultimately recovering C2 addresses and feature flags; the extractor code is published on GitHub.