{"id":"MAL-2026-18992","summary":"Malicious code in mrxd-baileys (npm)","details":"mrxd-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://cdn.malvintech.sbs/file/chJids.json, https://files.giftedtech.co.ke/file/chJids.json (the URL itself stored as base64 strings), using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).","modified":"2026-11-09T23:15:35.444447417Z","published":"2026-10-27T00:00:00Z","database_specific":{"iocs":{"urls":["https://cdn.malvintech.sbs/file/chJids.json","https://files.giftedtech.co.ke/file/chJids.json"],"domains":["cdn.malvintech.sbs","files.giftedtech.co.ke"],"files":[{"digests":{"sha256":"0272f25881a8797773c7b316fb59057e475d2f36d8daa9fa1a3c831fc845faf6"},"paths":["lib/Socket/newsletter.js"]},{"digests":{"sha256":"1508b7661ece1baa15c8b20280de4ae8b49ccaa4a5fd42d341bd700e97856cf8"},"paths":["lib/Socket/newsletter.js"]}],"ips":[]}},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/mrxd-baileys"},{"type":"WEB","url":"https://www.ox.security/blog/phantomsub-malicious-npm-campaign-secretly-adds-users-to-whatsapp-spam-channels/"}],"affected":[{"package":{"name":"mrxd-baileys","ecosystem":"npm","purl":"pkg:npm/mrxd-baileys"},"versions":["1.0.0","1.0.1","1.0.2"],"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/mrxd-baileys/MAL-2026-18992.json"}}],"schema_version":"1.9.2","credits":[{"name":"CyberXYZ","contact":["https://cyberxyz.io"],"type":"FINDER"}]}