{"id":"MAL-2026-18822","summary":"Malicious code in @dinzid/bailstao (npm)","details":"@dinzid/bailstao 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) 120363186130999681@newsletter, 120363303656790201@newsletter, 120363315657907625@newsletter, 120363388739599619@newsletter, 120363403108262988@newsletter, 120363404743164316@newsletter and 14 more (some stored as base64 strings), using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).","modified":"2026-11-09T23:15:20.524171964Z","published":"2026-10-27T00:00:00Z","database_specific":{"iocs":{"ips":[],"urls":[],"domains":[],"files":[{"digests":{"sha256":"c4e1826490a0205d508c0af05726a862d7c3b8c03e803be9db37bf3af35a4cba"},"paths":["lib/Socket/newsletter.js"]}]}},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/@dinzid/bailstao"},{"type":"WEB","url":"https://www.ox.security/blog/phantomsub-malicious-npm-campaign-secretly-adds-users-to-whatsapp-spam-channels/"}],"affected":[{"package":{"name":"@dinzid/bailstao","ecosystem":"npm","purl":"pkg:npm/%40dinzid/bailstao"},"versions":["0.0.7","0.0.8"],"database_specific":{"cwes":[{"cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code"}],"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@dinzid/bailstao/MAL-2026-18822.json"}}],"schema_version":"1.9.2","credits":[{"name":"CyberXYZ","contact":["https://cyberxyz.io"],"type":"FINDER"}]}