The keithbaileys npm package versions 1.0.8, 1.1.0, and 1.1.1 contain malicious code that silently subscribes the victim's WhatsApp account to attacker-controlled channels without user consent. This is achieved by injecting a covert FOLLOW query into the WhatsApp socket layer using the installer's authenticated 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.