Which versions of @zeppeliorg/wbails are malicious?

The following npm versions of @zeppeliorg/wbails are flagged malicious: 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.0.7-beta, 1.0.8, 1.0.9, 1.1.0, 1.1.1, 1.1.2, 1.1.5, 1.1.6, 1.1.7, 1.1.8, 1.1.9. Treat any of these as compromised.

How do I remediate @zeppeliorg/wbails if I installed it?

Remove @zeppeliorg/wbails 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.

I already installed @zeppeliorg/wbails — how do I know if it already compromised me?

If @zeppeliorg/wbails 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.

How do I find @zeppeliorg/wbails across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for @zeppeliorg/wbails (19 malicious versions).

Malicious package

@zeppeliorg/wbailsnpm

Advisory published Oct 27, 2026Updated Nov 9, 2026

@zeppeliorg/wbails is a confirmed malicious npm package (MAL-2026-18925) that executes malicious code on install (malicious versions 1.0.0, 1.0.1, 1.0.2…). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @zeppeliorg/wbails (npm)

MAL-2026-18925

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

npm uninstall @zeppeliorg/wbails

What this malware does

@zeppeliorg/wbails 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, 120363349140729983@newsletter, 120363400738305381@newsletter, 120363410018949906@newsletter, 120363410614416828@newsletter, 120363418691561888@newsletter and 7 more (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

19 flagged

1.0.01.0.11.0.21.0.31.0.41.0.51.0.61.0.71.0.7-beta1.0.81.0.91.1.01.1.11.1.21.1.51.1.61.1.71.1.81.1.9

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for @zeppeliorg/wbails (19 malicious versions).
If you installed it — respond
Remove @zeppeliorg/wbails 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.
Did it already run?
If @zeppeliorg/wbails 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. @zeppeliorg/wbails on npm has been identified as a malicious package (versions 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, and 11 more 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 @zeppeliorg/wbails-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.

Malware detection Runtime egress monitoring

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