MAL-2026-11080 Malicious code in @vinnxcode/xbailsync (npm)

@vinnxcode/xbailsync 1.0.1 is a fork/republish of the Baileys WhatsApp Web library. A a static rule fired on lib/Utils/generics.js due to co-occurrence of the tokens 'ping' and 'GET' in a utility file, which is the shape of network/HTTP helper code common to this library family. No concrete installer-harm path is present: there is no traced code that reads installer secrets (~/.aws, ~/.ssh, ~/.npmrc, env scraping, browser stores), no hardcoded attacker C2 destination bound to an exfiltration primitive, no install-time or import-time fetch-and-execute, no lifecycle scripts performing outbound network calls, and no dropper or backdoor mechanism. The pattern matched is keyword adjacency, not a demonstrable exfiltration flow.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.