The Haiou jailbreak bundle is a prompt package targeting OpenAI Codex that weakens model guardrails for security-related tasks such as hacking and software cracking. It functions as prompt adware by modifying Codex configuration files to inject advertisements for the author's LLM gateway service into agent responses. The bundle uses techniques like role-playing, context-reframing into CTF scenarios, and refusal suppression. It was found on a misconfigured webserver alongside tools like Cobalt Strike, VulnClaw agent, and Ladon framework, indicating active use by cybercrime actors. The freely distributed jailbreak serves as a channel to promote a paid gateway service, persistently injecting promotional content through encrypted payload files distributed via GitHub and Chinese platforms.