{"id":"MAL-2026-18843","summary":"Malicious code in @hanzzy/baileys-mod (npm)","details":"@hanzzy/baileys-mod 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/h4nzzy/WAchannel/refs/heads/main/idChannel.json, using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).","modified":"2026-11-09T23:15:17.632519362Z","published":"2026-10-27T00:00:00Z","database_specific":{"iocs":{"urls":["https://raw.githubusercontent.com/h4nzzy/WAchannel/refs/heads/main/idChannel.json"],"domains":["raw.githubusercontent.com"],"files":[{"paths":["lib/Socket/newsletter.js"],"digests":{"sha256":"3b25b1d0607e67aeee2f3b4d6ec22356b52f36389a54764d661641501c93d158"}}],"ips":[]}},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/@hanzzy/baileys-mod"},{"type":"WEB","url":"https://www.ox.security/blog/phantomsub-malicious-npm-campaign-secretly-adds-users-to-whatsapp-spam-channels/"}],"affected":[{"package":{"name":"@hanzzy/baileys-mod","ecosystem":"npm","purl":"pkg:npm/%40hanzzy/baileys-mod"},"versions":["8.0.11","8.0.2","8.0.4","8.0.5","8.0.6"],"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/@hanzzy/baileys-mod/MAL-2026-18843.json"}}],"schema_version":"1.9.2","credits":[{"name":"CyberXYZ","contact":["https://cyberxyz.io"],"type":"FINDER"}]}