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Malicious package

low_hummingbird_replicate_automationnpm

Advisory published Updated

low_hummingbird_replicate_automation is a confirmed malicious npm package (MAL-2026-18661) that executes malicious code on install (malicious version 2.2.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in low_hummingbird_replicate_automation (npm)

MAL-2026-18661
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall low_hummingbird_replicate_automation

What this malware does

Part of a self-republishing campaign: the package ships autopublish3.js, which in a loop gives the package a new random name, bumps its version, rewrites package.json and runs npm publish to publish the package again under the new name. Self-replicating publication is the propagation step of a registry worm and fills the registry with copies. Version examined: 2.2.1; tarball SHA-256 27350f7324f64a2c30cb92c938c4e5133d65e27b6efba13d97b15986732027e7.

Malicious versions

1 flagged
2.2.1

Detection & response playbook

Malicious package

  1. Find it

    Search your lockfiles and build artifacts for low_hummingbird_replicate_automation (version 2.2.1).

  2. If you installed it — respond

    Remove low_hummingbird_replicate_automation 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 low_hummingbird_replicate_automation 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. low_hummingbird_replicate_automation on npm has been identified as a malicious package (version 2.2.1 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 low_hummingbird_replicate_automation-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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low_hummingbird_replicate_automation (npm) malicious package — MAL-2026-18661 | O3 Security