Which versions of lambprobe4342 are malicious?

The following RubyGems versions of lambprobe4342 are flagged malicious: 0.0.1. Treat any of these as compromised.

How do I remediate lambprobe4342 if I installed it?

Remove lambprobe4342 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 lambprobe4342 — how do I know if it already compromised me?

If lambprobe4342 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 lambprobe4342 part of a known attack campaign?

Yes — lambprobe4342 is associated with the RLMA-2026-02474, RLUA-2026-08289 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 lambprobe4342 across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for lambprobe4342 (version 0.0.1).

Malicious package

lambprobe4342RubyGems

Advisory published Jul 7, 2026Updated Sep 24, 2026

lambprobe4342 is a confirmed malicious RubyGems package (MAL-2026-7816) 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 lambprobe4342 (RubyGems)

MAL-2026-7816

Immediate action

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

gem uninstall lambprobe4342

Malicious versions

1 flagged

0.0.1

Indicators of compromise (SHA-256)

1629bbc43b58f87aa6f077ce60241facd5ef9e80fcd7719d048b6ad4ab144318

f361355d0e58c0af28741224e5c867b12980ff292e270f2523706742eee90e70

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for lambprobe4342 (version 0.0.1).
If you installed it — respond
Remove lambprobe4342 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 lambprobe4342 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. lambprobe4342 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-2026-02474RLUA-2026-08289

References

github.com

Credits

ReversingLabs · finder

Detect & block this

O3 blocks lambprobe4342-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

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