Which versions of rails_test-serving are malicious?

The following RubyGems versions of rails_test-serving are flagged malicious: 0.1.4.2. Treat any of these as compromised.

How do I remediate rails_test-serving if I installed it?

Remove rails_test-serving 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 rails_test-serving — how do I know if it already compromised me?

If rails_test-serving 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 rails_test-serving part of a known attack campaign?

Yes — rails_test-serving is associated with the RLMA-2024-05813, RLUA-2024-10334, RLUA-2026-09027 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 rails_test-serving across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for rails_test-serving (version 0.1.4.2).

Malicious package

rails_test-servingRubyGems

Advisory published Jun 25, 2024Updated Sep 24, 2026

rails_test-serving is a confirmed malicious RubyGems package (MAL-2024-7008) that executes malicious code on install (malicious version 0.1.4.2). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in rails_test-serving (RubyGems)

MAL-2024-7008

Immediate action

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

gem uninstall rails_test-serving

Malicious versions

1 flagged

0.1.4.2

Indicators of compromise (SHA-256)

e565529ed4697408d9faff69a4fa09d5816e77d44350238c9a3a70e94bf248ae

a3f8f38ec068b94f2cddfb40b98171d9f82ea3dd754bc0a40b861d6fb6622592

516bc539fab64323a51327693ab22119adab6c6f829b5ce4d1dabc8c7fe4d330

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for rails_test-serving (version 0.1.4.2).
If you installed it — respond
Remove rails_test-serving 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 rails_test-serving 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. rails_test-serving on RubyGems has been identified as a malicious package (version 0.1.4.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-05813RLUA-2024-10334RLUA-2026-09027

References

Credits

ReversingLabs · finder

Detect & block this

O3 blocks rails_test-serving-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

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