NIST deprecates RSA-2048 from 2030. Find every one of them before attackers do.
Malicious package

procyon-lacerta-wezen-geochemistrynpm

Advisory published Updated

procyon-lacerta-wezen-geochemistry is a confirmed malicious npm package (MAL-2025-188845) that executes malicious code on install. Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in procyon-lacerta-wezen-geochemistry (npm)

MAL-2025-188845
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall procyon-lacerta-wezen-geochemistry

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)

e26ccccbebf40e22475b60ac38b6b4c904884e79c9c8149cc4ebdd18b7f3c58c

Detection & response playbook

Malicious package

  1. Find it

    Search your lockfiles and build artifacts for procyon-lacerta-wezen-geochemistry (all published versions).

  2. If you installed it — respond

    Remove procyon-lacerta-wezen-geochemistry 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 procyon-lacerta-wezen-geochemistry 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. procyon-lacerta-wezen-geochemistry 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 procyon-lacerta-wezen-geochemistry-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
procyon-lacerta-wezen-geochemistry (npm) malicious package — MAL-2025-188845 | O3 Security