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Malicious package

ir-annuities-client-authentication-modulenpm

Advisory published Updated

ir-annuities-client-authentication-module is a confirmed malicious npm package (MAL-2026-15536) that executes malicious code on install (malicious version 30.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in ir-annuities-client-authentication-module (npm)

MAL-2026-15536
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall ir-annuities-client-authentication-module

What this malware does

package.json declares a dependency whose key equals the package's own name (ir-annuities-client-authentication-module) and whose value is a plain HTTPS URL to a non-registry host (https://repo.securityctrl.com/ir-annuities-client-authentication-module) instead of a semver range. On npm install, npm fetches whatever bytes that URL currently returns and installs them as this dependency, with no version pin, no integrity hash, and no registry provenance; any lifecycle scripts contained in the fetched artifact execute on the installer. The dependency key matching the package's own name creates a dependency-confusion shape that can win resolution against an internal package of the same name. The shipped index.js is an inert stub, so the manifest itself is the delivery mechanism — the absence of local scripts does not prevent the fetch or its lifecycle execution.

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

1 flagged
30.0.0

Indicators of compromise (SHA-256)

0d813fc9c0831847a602c97803b7e53603edfb6acef4386e4cde2927c2a7a297
f38632ba56937eb99efe50ecefa5ca7a51b601c484b2e11c3a382cf4a33b9bf9

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for ir-annuities-client-authentication-module (version 30.0.0).

  2. If you installed it — respond

    Remove ir-annuities-client-authentication-module 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.

  3. Did it already run?

    If ir-annuities-client-authentication-module 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. ir-annuities-client-authentication-module on npm has been identified as a malicious package (version 30.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-019104GHSA-4hpj-q7v8-mjf7

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks ir-annuities-client-authentication-module-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.

Explore

ir-annuities-client-authentication-module (npm) malicious package — MAL-2026-15536 | O3 Security