The npm package 'etoro-billing' version 999.0.0 contains malicious code that executes during installation. Its preinstall script collects system information such as hostname, username, and current working directory, then sends this data via an unencrypted HTTP request to a hardcoded IP address unrelated to eToro. The package exports no functional code, indicating its primary purpose is to beacon identifying information. This package uses a high version number to potentially override legitimate internal packages with the same name, a technique known as dependency confusion.