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OpenAdvisories
Malicious MAL-2026-18995

nobiztoblut-bot

npm package · versions 1.2.3, 1.2.4

Reported Oct 27, 2026 · Updated Nov 9, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

nobiztoblut-bot is a fork of the Baileys WhatsApp Web library that silently subscribes the installer's own WhatsApp account to WhatsApp Channels chosen by the publisher. When the socket connects, code in lib/Socket/newsletter.js sends the WhatsApp w:mex FOLLOW query for the channel ID(s) 120363400738305381@newsletter, 120363420757607688@newsletter, 120363423837510800@newsletter, 120363425000320171@newsletter (stored as base64 strings), using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).