The PyPI package 'mi-test-99-tuapellido' version 99.9 contains malicious code that executes on import. It runs a shell command that sends the output of the 'id' command (user and group identity information) to an attacker-controlled domain via an unencrypted HTTP POST request. The package metadata indicates it is a placeholder or proof-of-concept, consistent with dependency confusion or namespace squatting attacks. This behavior occurs without user consent or any legitimate functionality. The package is identified as malicious by multiple sources and is designed to exfiltrate basic host information.