The npm package @bellaxchuu/teambails contains malicious code that silently subscribes a victim's authenticated WhatsApp account to attacker-controlled channels without user consent. This is done by injecting a covert subscription action into the WhatsApp socket layer, issuing an authenticated FOLLOW query to obfuscated or dynamically fetched WhatsApp Channel/Newsletter JIDs. The malicious code does not steal credentials, establish persistence, or execute arbitrary remote code.