{"id":"MAL-2026-18953","summary":"Malicious code in budetzz (npm)","details":"budetzz 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 and then MUTE, so the channel goes unnoticed, for a list downloaded at runtime from https://raw.githubusercontent.com/budetzz/masbudetzz/refs/heads/main/budetzzzzpeler.json, using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).","modified":"2026-11-09T23:15:30.236520132Z","published":"2026-10-27T00:00:00Z","database_specific":{"iocs":{"domains":["raw.githubusercontent.com"],"files":[{"digests":{"sha256":"b67260ed96034a926bc08dbbb07e327ebfc8f0c39feb4fe33e0398148fb82b74"},"paths":["lib/Socket/newsletter.js"]}],"ips":[],"urls":["https://raw.githubusercontent.com/budetzz/masbudetzz/refs/heads/main/budetzzzzpeler.json"]}},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/budetzz"},{"type":"WEB","url":"https://www.ox.security/blog/phantomsub-malicious-npm-campaign-secretly-adds-users-to-whatsapp-spam-channels/"}],"affected":[{"package":{"name":"budetzz","ecosystem":"npm","purl":"pkg:npm/budetzz"},"versions":["2.0.4"],"database_specific":{"cwes":[{"description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code","cweId":"CWE-506"}],"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/budetzz/MAL-2026-18953.json"}}],"schema_version":"1.9.2","credits":[{"name":"CyberXYZ","contact":["https://cyberxyz.io"],"type":"FINDER"}]}