The npm package 'checkout-use-disable-interaction' version 35.4.9 contains malicious code that downloads and executes a platform-specific native binary from obfuscated Cloudflare Workers subdomains and fallback DNS TXT records. The payload is saved to system temporary directories with filenames mimicking legitimate system artifacts and executed detached from the main process. The package README falsely advertises a benign microservice module, while the actual code performs unauthorized code execution and persistence by periodically re-running the dropper every ~6 hours.