Which versions of chain-metrica are malicious?

The following npm versions of chain-metrica are flagged malicious: 2.4.5. Treat any of these as compromised.

How do I remediate chain-metrica if I installed it?

Remove chain-metrica 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 chain-metrica — how do I know if it already compromised me?

If chain-metrica 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 chain-metrica part of a known attack campaign?

Yes — chain-metrica is associated with the RLMA-2026-01921 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 chain-metrica across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for chain-metrica (version 2.4.5).

Malicious package

chain-metricanpm

Advisory published Apr 16, 2026Updated Apr 23, 2026

chain-metrica is a confirmed malicious npm package (MAL-2026-2744) that executes malicious code on install (malicious version 2.4.5). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in chain-metrica (npm)

MAL-2026-2744

Immediate action

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

npm uninstall chain-metrica

What this malware does

The package chain-metrica was found to contain malicious code.

Malicious versions

1 flagged

2.4.5

Indicators of compromise (SHA-256)

c2ff52278c930c391f6ffa31d8733a5002bbbcdeda1e98aeaf7cfc7e2e2b41ac

fb624dbdf0ad26818c6d6685e22838c8bbb23d223376ba009f53500ca469ad86

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for chain-metrica (version 2.4.5).
If you installed it — respond
Remove chain-metrica 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 chain-metrica 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. chain-metrica on npm has been identified as a malicious package (version 2.4.5 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-01921

Credits

Amazon Inspector · finder
ReversingLabs · finder

Detect & block this

O3 blocks chain-metrica-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