Which versions of cool-black-bird are malicious?

Every published version of cool-black-bird on npm is considered malicious. Remove the package entirely.

How do I remediate cool-black-bird if I installed it?

cool-black-bird is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

I already installed cool-black-bird — how do I know if it already compromised me?

If cool-black-bird 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 cool-black-bird across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for cool-black-bird (all published versions).

Malicious package

cool-black-birdnpm

Advisory published Nov 12, 2025Updated Nov 12, 2025

cool-black-bird is a confirmed malicious npm package (MAL-2025-138636) that steals credentials and exfiltrates sensitive data. Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in cool-black-bird (npm)

MAL-2025-138636

Immediate action

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

npm uninstall cool-black-bird

What this malware does

This package appears to be part of the tea.xyz token reward campaign that flooded npm. These packages typically contain autopublish scripts (auto.js, autopublish.js, autopublish2.js, autopublish3.js) designed to automatically generate and publish derivative packages with randomized names to inflate developer reputation scores for tea protocol token rewards. The malicious payload modifies package.json to remove private flags, changes version numbers, generates random Indonesian-themed package names (some variants are also in English), and continuously republishes variants to pollute the npm registry.

Malicious versions

all versions

Every published version of this package is considered malicious — remove it entirely.

Indicators of compromise (SHA-256)

89b4bffa4a144b3196425db620389a92d7a27be809c413aab9631c73fcd224bf

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for cool-black-bird (all published versions).
If you installed it — respond
cool-black-bird is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If cool-black-bird 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. cool-black-bird on npm has been identified as a malicious package (all published versions flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks cool-black-bird-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database