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 ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

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?

Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for ac-raf-emitter (version 3.0.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging ac-raf-emitter across your stack and pipelines.

Malicious package

ac-raf-emitternpm

Malicious code in ac-raf-emitter (npm) Remove it immediately and rotate any exposed credentials.

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
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for ac-raf-emitter (version 3.0.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging ac-raf-emitter across your stack and pipelines.
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 ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.
How O3 protects you
O3 blocks ac-raf-emitter before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

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