Which versions of lines-mixer are malicious?

The following RubyGems versions of lines-mixer are flagged malicious: 0.0.1. Treat any of these as compromised.

How do I remediate lines-mixer if I installed it?

Remove lines-mixer 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 lines-mixer — how do I know if it already compromised me?

If lines-mixer 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 lines-mixer part of a known attack campaign?

Yes — lines-mixer is associated with the RLMA-2024-05763, RLUA-2024-10283, RLUA-2026-08490 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 lines-mixer across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for lines-mixer (version 0.0.1).

Malicious package

lines-mixerRubyGems

Advisory published Jun 25, 2024Updated Sep 24, 2026

lines-mixer is a confirmed malicious RubyGems package (MAL-2024-6957) that executes malicious code on install (malicious version 0.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in lines-mixer (RubyGems)

MAL-2024-6957

Immediate action

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

gem uninstall lines-mixer

Malicious versions

1 flagged

0.0.1

Indicators of compromise (SHA-256)

f08baa225f19cbc1776adaaaa074149f336ebed43aba54c8fbb4ca0c9c916694

382fe79238acad4b4a9a714e1f70ae7ea1fbd79e6b797ca85112b10c2fd4e610

87623c8b0373d5fa9c0fb33920fd34ed14f12e49e121d758552e970e9602a5b1

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for lines-mixer (version 0.0.1).
If you installed it — respond
Remove lines-mixer 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 lines-mixer 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. lines-mixer on RubyGems has been identified as a malicious package (version 0.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-05763RLUA-2024-10283RLUA-2026-08490

References

Credits

ReversingLabs · finder

Detect & block this

O3 blocks lines-mixer-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