Which versions of servicecore-logger are malicious?

Every published version of servicecore-logger on npm is considered malicious. Remove the package entirely.

How do I remediate servicecore-logger if I installed it?

Remove servicecore-logger 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 servicecore-logger — how do I know if it already compromised me?

If servicecore-logger 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 servicecore-logger part of a known attack campaign?

Yes — servicecore-logger is associated with the GHSA-pjg7-cpgw-g7cc 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 servicecore-logger across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for servicecore-logger (all published versions).

Malicious package

servicecore-loggernpm

Advisory published Nov 9, 2025Updated Nov 18, 2025

servicecore-logger is a confirmed malicious npm package (MAL-2025-49434) that executes malicious code on install. Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in servicecore-logger (npm)

MAL-2025-49434

Immediate action

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

npm uninstall servicecore-logger

What this malware does

The package servicecore-logger 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.

Malicious versions

all versions

Every published version of this package is considered malicious — remove it entirely.

Indicators of compromise (SHA-256)

67358a5e26b15490ada3fa1cfa427c857adafe5a9c9190e1a8f3f5b1f02dff6e

ffdb027e2c9d8a2e76a133435076b8e49a7df95c8c389680bd062e02fc5ae09c

Detection & response playbook

Malicious package

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

Campaign

GHSA-pjg7-cpgw-g7cc

References

github.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks servicecore-logger-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