Which versions of calculator-40ed are malicious?

The following npm versions of calculator-40ed are flagged malicious: 4.0.0, 5.0.0. Treat any of these as compromised.

How do I remediate calculator-40ed if I installed it?

Remove calculator-40ed 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.

I already installed calculator-40ed — how do I know if it already compromised me?

If calculator-40ed 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.

Is calculator-40ed part of a known attack campaign?

Yes — calculator-40ed is associated with the RLMA-2025-06076 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find calculator-40ed across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for calculator-40ed (2 malicious versions).

Malicious package

calculator-40ednpm

Advisory published Dec 23, 2025Updated Dec 24, 2025

calculator-40ed is a confirmed malicious npm package (MAL-2025-192719) that executes malicious code on install (malicious versions 4.0.0, 5.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in calculator-40ed (npm)

MAL-2025-192719

Immediate action

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

npm uninstall calculator-40ed

What this malware does

The package calculator-40ed was found to contain malicious code.

Malicious versions

2 flagged

4.0.05.0.0

Indicators of compromise (SHA-256)

3e4a9b497ac0ae9a0e59850981e92de337601780c7af8c97f579b6315ff242f4

fcb6983999bd21cebf8cf17bcba24387d1246d9e8d1d54ecc1a23080f4eb1435

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for calculator-40ed (2 malicious versions).
If you installed it — respond
Remove calculator-40ed 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.
Did it already run?
If calculator-40ed 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. calculator-40ed on npm has been identified as a malicious package (versions 4.0.0, 5.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-06076

Credits

Amazon Inspector · finder
ReversingLabs · finder

Detect & block this

O3 blocks calculator-40ed-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