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Malicious package

node-calculator-1b6enpm

Malicious code in node-calculator-1b6e (npm) Remove it immediately and rotate any exposed credentials.

MAL-2025-190517
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall node-calculator-1b6e

What this malware does

The package node-calculator-1b6e was found to contain malicious code.

The OpenSSF Package Analysis project identified 'node-calculator-1b6e' @ 3.0.11 (npm) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.

Malicious versions

1 flagged
3.0.11

Indicators of compromise (SHA-256)

675e6f19c12bb458133c72a15b9539262d7b2f03d4adff4d9915a6b3cba9aa02
9836f0c7c84a6804c063c9e845dd05381413f1c6c9fe2b6d8e1d70473a80a456

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-1b6e (version 3.0.11). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging node-calculator-1b6e across your stack and pipelines.

  2. If you installed it — respond

    Remove node-calculator-1b6e 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-1b6e 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-1b6e 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-1b6e on npm has been identified as a malicious package (version 3.0.11 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Credits

  • Amazon Inspector · finder
  • OpenSSF: Package Analysis · finder

Detect & block this

O3 blocks node-calculator-1b6e-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-1b6e (npm) malicious package — MAL-2025-190517 | O3 Security