Which versions of southern_duck_tan-16 are malicious?

The following npm versions of southern_duck_tan-16 are flagged malicious: 2.4.3. Treat any of these as compromised.

How do I remediate southern_duck_tan-16 if I installed it?

Remove southern_duck_tan-16 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 southern_duck_tan-16 — how do I know if it already compromised me?

If southern_duck_tan-16 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 southern_duck_tan-16 across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for southern_duck_tan-16 (version 2.4.3).

Malicious package

southern_duck_tan-16npm

Advisory published Nov 2, 2026Updated Nov 4, 2026

southern_duck_tan-16 is a confirmed malicious npm package (MAL-2026-18618) that executes malicious code on install (malicious version 2.4.3). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in southern_duck_tan-16 (npm)

MAL-2026-18618

Immediate action

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

npm uninstall southern_duck_tan-16

What this malware does

Part of a self-republishing campaign: generated names of the form <adjective><animal><colour>-<number>, each package shipping the same autopublish.js, which runs npm publish --access public to publish the package again. Self-replicating publication is the propagation step of a registry worm and fills the registry with copies. Version examined: 2.4.3; tarball SHA-256 a3154921b8a06cfa66c41cf8d689a9e16610ddda9e78c8db51e986bcf1e056d9.

Malicious versions

1 flagged

2.4.3

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for southern_duck_tan-16 (version 2.4.3).
If you installed it — respond
Remove southern_duck_tan-16 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 southern_duck_tan-16 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. southern_duck_tan-16 on npm has been identified as a malicious package (version 2.4.3 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Credits

Oluwatosin Amokeodo · finder

Detect & block this

O3 blocks southern_duck_tan-16-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

Explore

All malware advisories How O3 detects malware Vulnerability database