Which versions of @rocket.chat_mkb/emitter are malicious?

The following npm versions of @rocket.chat_mkb/emitter are flagged malicious: 9.9.9. Treat any of these as compromised.

How do I remediate @rocket.chat_mkb/emitter if I installed it?

Remove @rocket.chat_mkb/emitter 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 @rocket.chat_mkb/emitter — how do I know if it already compromised me?

If @rocket.chat_mkb/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 @rocket.chat_mkb/emitter part of a known attack campaign?

Yes — @rocket.chat_mkb/emitter is associated with the RLMA-2026-04774, RLUA-2026-05917 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 @rocket.chat_mkb/emitter across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for @rocket.chat_mkb/emitter (version 9.9.9).

Malicious package

@rocket.chat_mkb/emitternpm

Advisory published Jul 7, 2026Updated Sep 1, 2026

@rocket.chat_mkb/emitter is a confirmed malicious npm package (MAL-2026-7088) that executes malicious code on install (malicious version 9.9.9). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @rocket.chat_mkb/emitter (npm)

MAL-2026-7088

Immediate action

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

npm uninstall @rocket.chat_mkb/emitter

Malicious versions

1 flagged

9.9.9

Indicators of compromise (SHA-256)

2421ea1147b270ca86d34a0e1fb9c9bd1c7ae0dd3b503bd7c4346f5676b6a4d8

1c1dfe364786b993e9af7c294a419680204defd345b7ecc2ad5478fd0e326732

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for @rocket.chat_mkb/emitter (version 9.9.9).
If you installed it — respond
Remove @rocket.chat_mkb/emitter 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 @rocket.chat_mkb/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. @rocket.chat_mkb/emitter on npm has been identified as a malicious package (version 9.9.9 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-04774RLUA-2026-05917

References

github.com

Credits

ReversingLabs · finder

Detect & block this

O3 blocks @rocket.chat_mkb/emitter-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