Which versions of test89078-auth are malicious?

The following npm versions of test89078-auth are flagged malicious: 99.99.99. Treat any of these as compromised.

How do I remediate test89078-auth if I installed it?

test89078-auth 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 test89078-auth — how do I know if it already compromised me?

If test89078-auth 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 test89078-auth part of a known attack campaign?

Yes — test89078-auth is associated with the IN-MAL-2026-020140 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 test89078-auth across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for test89078-auth (version 99.99.99).

Malicious package

test89078-authnpm

Advisory published Sep 17, 2026Updated Sep 17, 2026

test89078-auth is a confirmed malicious npm package (MAL-2026-16271) that steals credentials and exfiltrates sensitive data (malicious version 99.99.99). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in test89078-auth (npm)

MAL-2026-16271

Immediate action

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

npm uninstall test89078-auth

What this malware does

The package's preinstall script (scripts.preinstall = 'node index.js') runs automatically on npm install and collects os.userInfo().username and os.hostname(), then issues a dns.lookup against a subdomain of 31ee29fe-db68-4fd3-86a2-2b707b9e95f0.dnshook.site with the username and hostname embedded in the queried label. This is a DNS-based exfiltration beacon: installing the package transmits installer host identifiers to a non-first-party canary domain over DNS resolution at install time. The version number 99.99.99 and package name shape are consistent with a dependency-confusion lure targeting an internal package name.

Malicious versions

1 flagged

99.99.99

Indicators of compromise (SHA-256)

c1ac938360c682e2489d11de9278697e7e2e85d73c612d2ab60ed28553bb5573

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for test89078-auth (version 99.99.99).
If you installed it — respond
test89078-auth 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 test89078-auth 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. test89078-auth on npm has been identified as a malicious package (version 99.99.99 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-020140

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks test89078-auth-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

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