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Malicious package

umbriel-bootstrap-polaris-cometnpm

Advisory published Updated

umbriel-bootstrap-polaris-comet is a confirmed malicious npm package (MAL-2025-190043) that steals credentials and exfiltrates sensitive data. Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in umbriel-bootstrap-polaris-comet (npm)

MAL-2025-190043
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall umbriel-bootstrap-polaris-comet

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)

7c7e22f661b3b8aa6ba56ea19195787c22f7e2c718cb13c4698d74adefd90d00

Detection & response playbook

Credential / info stealer

  1. Find it

    Search your lockfiles and build artifacts for umbriel-bootstrap-polaris-comet (all published versions).

  2. If you installed it — respond

    umbriel-bootstrap-polaris-comet 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.

  3. Did it already run?

    If umbriel-bootstrap-polaris-comet 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. umbriel-bootstrap-polaris-comet 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 umbriel-bootstrap-polaris-comet-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

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umbriel-bootstrap-polaris-comet (npm) malicious package — MAL-2025-190043 | O3 Security