Which versions of ac-raf-emitter are malicious?

The following npm versions of ac-raf-emitter are flagged malicious: 3.0.1. Treat any of these as compromised.

How do I remediate ac-raf-emitter if I installed it?

ac-raf-emitter 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 ac-raf-emitter — how do I know if it already compromised me?

If ac-raf-emitter 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 ac-raf-emitter part of a known attack campaign?

Yes — ac-raf-emitter is associated with the IN-MAL-2026-010670 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 ac-raf-emitter across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for ac-raf-emitter (version 3.0.1).

Malicious package

ac-raf-emitternpm

Advisory published Jul 15, 2026Updated Jul 15, 2026

ac-raf-emitter is a confirmed malicious npm package (MAL-2026-10675) that steals credentials and exfiltrates sensitive data (malicious version 3.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in ac-raf-emitter (npm)

MAL-2026-10675

Immediate action

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

npm uninstall ac-raf-emitter

What this malware does

package.json declares a preinstall lifecycle script that runs curl -X POST against a hardcoded webhook.site collector URL (https://webhook.site/54919426-084d-4288-8f80-e36ae5c76e32), passing the installer's hostname and a timestamp as query parameters. The exfiltration fires automatically on npm install before any consumer code runs. The destination is an anonymous, author-controlled request-inspection endpoint with no legitimate role in the package's advertised functionality.

Malicious versions

1 flagged

3.0.1

Indicators of compromise (SHA-256)

4a9d9e454c08fdafa531ee74a3bc52513d5bc39413810db4a6371494872984f8

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for ac-raf-emitter (version 3.0.1).
If you installed it — respond
ac-raf-emitter 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 ac-raf-emitter 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. ac-raf-emitter on npm has been identified as a malicious package (version 3.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-010670

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks ac-raf-emitter-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