If this package is installed
Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.
Details
@kyuu2nd/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) 120363330344810280@newsletter, 120363400738305381@newsletter, 120363402868866359@newsletter, 120363404790454890@newsletter, 120363404861802607@newsletter, 120363405313529091@newsletter and 13 more (stored as character-code arrays) and a list downloaded at runtime from https://raw.githubusercontent.com/kiuur/IDCH/refs/heads/main/idch.json, using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).
Indicators of compromise
Shown defanged and not clickable. Search any indicator to find other packages using it.
Domains
- raw[.]githubusercontent[.]com other packages →
URLs
- hxxps://raw[.]githubusercontent[.]com/kiuur/IDCH/refs/heads/main/idch[.]json other packages →