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Malicious package

node-calculator-ad83npm

Malicious code in node-calculator-ad83 (npm) Remove it immediately and rotate any exposed credentials.

MAL-2025-192839
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall node-calculator-ad83

What this malware does

The package node-calculator-ad83 was found to contain malicious code.

Malicious versions

3 flagged
2.2.02.3.09.9.9

Indicators of compromise (SHA-256)

fd997e41d31660d19547ded826e79c8ac7527df8237f385ff7dfcefd9250311a
e54e5ced22286087a11c9c7462f631d3cf4014d13403ff370c65b5b9b2bf03ba

Detection & response playbook

Malicious package
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for node-calculator-ad83 (3 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging node-calculator-ad83 across your stack and pipelines.

  2. If you installed it — respond

    Remove node-calculator-ad83 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 node-calculator-ad83 was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks node-calculator-ad83 before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. node-calculator-ad83 on npm has been identified as a malicious package (versions 2.2.0, 2.3.0, 9.9.9 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-06423

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks node-calculator-ad83-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.

node-calculator-ad83 (npm) malicious package — MAL-2025-192839 | O3 Security