Which versions of node-calculator-2eb4 are malicious?

The following npm versions of node-calculator-2eb4 are flagged malicious: 2.5.5. Treat any of these as compromised.

How do I remediate node-calculator-2eb4 if I installed it?

Remove node-calculator-2eb4 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-2eb4 — how do I know if it already compromised me?

If node-calculator-2eb4 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-2eb4 part of a known attack campaign?

Yes — node-calculator-2eb4 is associated with the RLMA-2025-06408 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-2eb4 across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for node-calculator-2eb4 (version 2.5.5).

Malicious package

node-calculator-2eb4npm

Advisory published Dec 23, 2025Updated Jan 2, 2026

node-calculator-2eb4 is a confirmed malicious npm package (MAL-2025-192828) that executes malicious code on install (malicious version 2.5.5). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in node-calculator-2eb4 (npm)

MAL-2025-192828

Immediate action

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

npm uninstall node-calculator-2eb4

What this malware does

The package node-calculator-2eb4 was found to contain malicious code.

Malicious versions

1 flagged

2.5.5

Indicators of compromise (SHA-256)

9f01a2775984ca6d114ac0bb1d10f5b6a5bc750eee752e9f678c39240fb4a1d1

e571a443d6fe04b41f5a714fb830514677b55d53d42bac0260f312e4a8b72b6f

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for node-calculator-2eb4 (version 2.5.5).
If you installed it — respond
Remove node-calculator-2eb4 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-2eb4 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-2eb4 on npm has been identified as a malicious package (version 2.5.5 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-06408

Credits

Amazon Inspector · finder
ReversingLabs · finder

Detect & block this

O3 blocks node-calculator-2eb4-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