{"id":"MAL-2026-18846","summary":"Malicious code in @hbmodsofc/baileys (npm)","details":"@hbmodsofc/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 the channel ID(s) 120363191549232941@newsletter, using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).","modified":"2026-11-09T23:15:18.542833355Z","published":"2026-10-27T00:00:00Z","database_specific":{"iocs":{"domains":[],"files":[{"paths":["lib/Socket/newsletter.js"],"digests":{"sha256":"2230c800d8c5c76ead260320c92e7154760c23ceda525bda2e17941bc2c496bb"}},{"paths":["lib/Socket/newsletter.js"],"digests":{"sha256":"fb679edae39d1516874877af57482e264c8d4ac001a094a43736600c45c65c2e"}}],"ips":[],"urls":[]}},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/@hbmodsofc/baileys"},{"type":"WEB","url":"https://www.ox.security/blog/phantomsub-malicious-npm-campaign-secretly-adds-users-to-whatsapp-spam-channels/"}],"affected":[{"package":{"name":"@hbmodsofc/baileys","ecosystem":"npm","purl":"pkg:npm/%40hbmodsofc/baileys"},"versions":["2.4.0","2.5.0","3.0.0","3.1.0","3.2.0"],"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/@hbmodsofc/baileys/MAL-2026-18846.json"}}],"schema_version":"1.9.2","credits":[{"name":"CyberXYZ","contact":["https://cyberxyz.io"],"type":"FINDER"}]}