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Malicious package

alisaai-baileysnpm

Advisory published Updated

alisaai-baileys is a confirmed malicious npm package (MAL-2026-18931) that executes malicious code on install (malicious versions 8.5.4, 9.0.0, 9.1.0…). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in alisaai-baileys (npm)

MAL-2026-18931
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall alisaai-baileys

What this malware does

alisaai-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) 120363401150921495@newsletter, 120363403865450077@newsletter, 120363421346448687@newsletter (stored as base64 strings), using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).

Malicious versions

7 flagged
8.5.49.0.09.1.010.0.011.0.011.1.011.2.0

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for alisaai-baileys (7 malicious versions).

  2. If you installed it — respond

    Remove alisaai-baileys from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

  3. Did it already run?

    If alisaai-baileys was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. alisaai-baileys on npm has been identified as a malicious package (versions 8.5.4, 9.0.0, 9.1.0, 10.0.0, 11.0.0, 11.1.0, 11.2.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

References

Credits

  • CyberXYZ · finder

Detect & block this

O3 blocks alisaai-baileys-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Explore

alisaai-baileys (npm) malicious package — MAL-2026-18931 | O3 Security