The npm package @sudoughnym/enviro-demo version 99.99.99 contains malicious preinstall and postinstall scripts that automatically run during npm install. These scripts collect host identifiers and environment metadata, including hostname, current working directory, process ID, Node.js version, platform, user environment variables, and send this data to an attacker-controlled third-party webhook. The package is a dependency-confusion proof-of-concept designed to outrank internal packages by using an inflated version number. Installing this package leaks sensitive environment information to an unauthorized external endpoint.