Which versions of @accordproject/concerto-analysis are malicious?

The following npm versions of @accordproject/concerto-analysis are flagged malicious: 3.24.1. Treat any of these as compromised.

How do I remediate @accordproject/concerto-analysis if I installed it?

@accordproject/concerto-analysis is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

I already installed @accordproject/concerto-analysis — how do I know if it already compromised me?

If @accordproject/concerto-analysis 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.

Is @accordproject/concerto-analysis part of a known attack campaign?

Yes — @accordproject/concerto-analysis is associated with the GHSA-h27j-vm9v-5mpm 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 @accordproject/concerto-analysis across my projects, lockfiles, and CI pipelines?

Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @accordproject/concerto-analysis (version 3.24.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @accordproject/concerto-analysis across your stack and pipelines.

Malicious package

@accordproject/concerto-analysisnpm

Malicious code in @accordproject/concerto-analysis (npm) Remove it immediately and rotate any exposed credentials.

MAL-2025-191171

Immediate action

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

npm uninstall @accordproject/concerto-analysis

What this malware does

The package @accordproject/concerto-analysis was found to contain malicious code.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

This package was compromised by the Sha1-Hulud: The Second Coming NPM worm. The malicious payload steals tokens and credentials and publishes them to GitHub. The worm will propogate itself to NPM packages the user owns and establish persistence is a GitHub action. The package may also destroy the user's home directory.

Malicious versions

1 flagged

3.24.1

Indicators of compromise (SHA-256)

cac6d1df3edcd5e424e7c1c6f1f2121ec9f66858525a058324bbc96ee9841752

9d6b20a978ee216d20d3ce93508418877b5ca745da33888a0d3eeeb4ab76c1f7

bd4dfaf2dbfd72597ed98e94903934d34e97ddd5dc4f7aeb7f5450767cb3a34c

Detection & response playbook

Credential / info stealer

Find it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @accordproject/concerto-analysis (version 3.24.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @accordproject/concerto-analysis across your stack and pipelines.
If you installed it — respond
@accordproject/concerto-analysis is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If @accordproject/concerto-analysis 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.
How O3 protects you
O3 blocks @accordproject/concerto-analysis 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. @accordproject/concerto-analysis on npm has been identified as a malicious package (version 3.24.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-h27j-vm9v-5mpm

References

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks @accordproject/concerto-analysis-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring