Claude Decodes Obfuscated Linux Exploit Code via HTML Output

Simon Willison demos Claude generating HTML explanations of obfuscated Python POC code for a new Linux vulnerability.

Simon Willison (@simonw) shared on X that Claude can generate HTML explanations of obfuscated Python proof-of-concept code, demonstrating the technique against a newly disclosed Linux vulnerability exploit. His workflow: paste the obfuscated code into a GitHub Gist, then provide the Gist ID to Claude, which returns a human-readable HTML breakdown of what the code does.

The thread touched on the broader implications of formalizing the approach โ€” one reply asked whether Claude had flagged the irony in its own output, referencing the author's aside that readers might turn the technique into a dedicated /html skill for Claude Code. For security practitioners, the demo illustrates how LLMs can accelerate reverse engineering of hostile code, compressing what might take hours of manual analysis into a quick automated pass. The same capability, however, lowers the barrier for anyone seeking to understand โ€” and potentially adapt โ€” published exploit code.

Sources