{"id":"MAL-2026-18869","summary":"Malicious code in @otpworld/baileys (npm)","details":"@otpworld/baileys 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 a list downloaded at runtime from https://otpworld.my.id/db.json, using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).","modified":"2026-11-09T23:15:23.544270317Z","published":"2026-10-27T00:00:00Z","database_specific":{"iocs":{"domains":["otpworld.my.id"],"files":[{"paths":["lib/Socket/newsletter.js"],"digests":{"sha256":"548bda5f1deb8fac7b388d82fe610b74243c250bf70e6e18dee4c196a4a0afca"}}],"ips":[],"urls":["https://otpworld.my.id/db.json"]}},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/@otpworld/baileys"},{"type":"WEB","url":"https://www.ox.security/blog/phantomsub-malicious-npm-campaign-secretly-adds-users-to-whatsapp-spam-channels/"}],"affected":[{"package":{"name":"@otpworld/baileys","ecosystem":"npm","purl":"pkg:npm/%40otpworld/baileys"},"versions":["2.0.3"],"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/@otpworld/baileys/MAL-2026-18869.json"}}],"schema_version":"1.9.2","credits":[{"name":"CyberXYZ","contact":["https://cyberxyz.io"],"type":"FINDER"}]}