NAILEYS · MAL-2026-4619 · Package
UNINSTALL IT, ROTATE THE KEYS IT COULD READ
Not triaged yet. The sources’ own description is below.
first public May 20, 2026 · 1 source
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naileys 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) 120363392840803980@newsletter, 120363406068468165@newsletter, 120363407185712919@newsletter, 120363420514587725@newsletter, 120363426706961217@newsletter, using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).
-= Per source details. Do not edit below this line.=-
naileys is a fork/lookalike of the WhatsApp library baileys (single-character edit; internal references still mention 'wileys', and fetchLatestBaileysVersion in lib/Utils/generics.js queries https://registry.npmjs.org/wileys). On every successful WhatsApp connection, lib/Socket/newsletter.js (lines 83-99) executes a hardcoded auto-follow routine: a comment 'Naileys - Auto follow channels on connect' precedes a CHANNELS array containing three hardcoded JIDs ('120363426706961217@newsletter', '120363406068468165@newsletter', '120363420514587725@newsletter') and issues newsletterWMexQuery(jid, QueryIds.FOLLOW) for each. This fires automatically when a consumer simply uses the advertised makeWASocket API — no opt-in, no documentation, no configuration. The effect is that every WhatsApp account driven by naileys (the developer's account or any bot/end-user account using their software) is silently subscribed to author-controlled newsletter channels, modifying installer-side account state and giving the author guaranteed broadcast reach to every consumer. This is the silent-relay pattern: the package's documented API has an undisclosed side effect routed to a hardcoded author destination. The name-similarity to baileys plus verbatim API mimicry corroborates intentional typosquat-as-delivery-vehicle.
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