The my-baileys npm package versions 1.0.1 through 1.0.5 contain malicious code that silently subscribes the victim's WhatsApp account to attacker-controlled channels without user consent. This is done by injecting a covert channel-subscription action into the WhatsApp socket layer, issuing authenticated FOLLOW queries using the installer's own WhatsApp session. The target channels are obfuscated or dynamically fetched to evade detection. The malicious code does not exfiltrate credentials, establish persistence, or execute arbitrary remote code.