{"id":"MAL-2026-19031","summary":"Malicious code in vinzzxd (npm)","details":"vinzzxd 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://raw.githubusercontent.com/VinzzOfficial/Baileys/main/WAProto/wa-id/idch.json, https://raw.githubusercontent.com/VinzzOfficial/Baileys/main/WAProto/wa-id/idgc.json, using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).","modified":"2026-11-09T23:15:37.346692928Z","published":"2026-10-27T00:00:00Z","database_specific":{"iocs":{"urls":["https://raw.githubusercontent.com/VinzzOfficial/Baileys/main/WAProto/wa-id/idch.json","https://raw.githubusercontent.com/VinzzOfficial/Baileys/main/WAProto/wa-id/idgc.json"],"domains":["raw.githubusercontent.com"],"files":[{"paths":["lib/Socket/newsletter.js"],"digests":{"sha256":"bdb53234ba56611ff977bb19725b997c216576b007e853f9f708f742c4340fdd"}}],"ips":[]}},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/vinzzxd"},{"type":"WEB","url":"https://www.ox.security/blog/phantomsub-malicious-npm-campaign-secretly-adds-users-to-whatsapp-spam-channels/"}],"affected":[{"package":{"name":"vinzzxd","ecosystem":"npm","purl":"pkg:npm/vinzzxd"},"versions":["1.0.0","1.0.2"],"database_specific":{"cwes":[{"name":"Embedded Malicious Code","cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature."}],"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/vinzzxd/MAL-2026-19031.json"}}],"schema_version":"1.9.2","credits":[{"name":"CyberXYZ","contact":["https://cyberxyz.io"],"type":"FINDER"}]}