How do I remediate node-calculator-a34e if I installed it?

Remove node-calculator-a34e 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 node-calculator-a34e — how do I know if it already compromised me?

If node-calculator-a34e 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 node-calculator-a34e part of a known attack campaign?

Yes — node-calculator-a34e is associated with the RLMA-2025-06421 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 node-calculator-a34e across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for node-calculator-a34e (9 malicious versions).

Malicious package

node-calculator-a34enpm

Advisory published Dec 23, 2025Updated Jan 2, 2026

node-calculator-a34e is a confirmed malicious npm package (MAL-2025-192837) that executes malicious code on install (malicious versions 3.1.1, 999.1.1, 9999.1.1…). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in node-calculator-a34e (npm)

MAL-2025-192837

Immediate action

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

npm uninstall node-calculator-a34e

What this malware does

The package node-calculator-a34e was found to contain malicious code.

Malicious versions

9 flagged

3.1.1999.1.19999.1.19999999999.1.19999999999.2.19999999999.3.19999999999.3.29999999999.3.399999999999.1.1

Indicators of compromise (SHA-256)

759492a391f6544cc6f15d981a3c60935c31c472333f205ccd6925895fda6717

5ae83fff8883adf2ce609cc20637ceeca88178dfeb8da55c9e36d829c4b25133

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for node-calculator-a34e (9 malicious versions).
If you installed it — respond
Remove node-calculator-a34e 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 node-calculator-a34e 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. node-calculator-a34e on npm has been identified as a malicious package (versions 3.1.1, 999.1.1, 9999.1.1, 9999999999.1.1, 9999999999.2.1, 9999999999.3.1, 9999999999.3.2, 9999999999.3.3, and 1 more flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-06421

Credits

Amazon Inspector · finder
ReversingLabs · finder

Detect & block this

O3 blocks node-calculator-a34e-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