Which versions of acme-package are malicious?

The following npm versions of acme-package are flagged malicious: 99.0.0. Treat any of these as compromised.

How do I remediate acme-package if I installed it?

acme-package 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 acme-package — how do I know if it already compromised me?

If acme-package 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 acme-package part of a known attack campaign?

Yes — acme-package is associated with the GHSA-r5p5-ccxx-hgv5, RLMA-2025-05675 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 acme-package across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for acme-package (version 99.0.0).

Malicious package

acme-packagenpm

Advisory published Oct 29, 2025Updated Dec 2, 2025

acme-package is a confirmed malicious npm package (MAL-2025-48972) that steals credentials and exfiltrates sensitive data (malicious version 99.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in acme-package (npm)

MAL-2025-48972

Immediate action

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

npm uninstall acme-package

What this malware does

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 installs a dependency hosted on a custom domain that runs an info stealer during installation. The info stealer focuses on stealing npm, git, and other CI/CD related tokens.

Malicious versions

1 flagged

99.0.0

Indicators of compromise (SHA-256)

3b71a81b10d7836d7a4aeb72b36d2d7c0a4c94e7697d47254dc9c15ecd803bb4

115863c724733756af194811e4d8792dca84de9a98a8c9cd8d9e014dfc0d8a15

227010f03972027875deb68e1a4c44ff86e8a9379d9ae755ee2f212d7049eda5

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for acme-package (version 99.0.0).
If you installed it — respond
acme-package 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 acme-package 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. acme-package on npm has been identified as a malicious package (version 99.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-r5p5-ccxx-hgv5RLMA-2025-05675

References

Credits

ReversingLabs · finder

Detect & block this

O3 blocks acme-package-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

Explore

All malware advisories How O3 detects malware Vulnerability database