Which versions of g8405sfwon are malicious?

The following RubyGems versions of g8405sfwon are flagged malicious: 0.0.1. Treat any of these as compromised.

How do I remediate g8405sfwon if I installed it?

Remove g8405sfwon 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 g8405sfwon — how do I know if it already compromised me?

If g8405sfwon 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 g8405sfwon part of a known attack campaign?

Yes — g8405sfwon is associated with the RLMA-2026-02359, RLUA-2026-08137 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 g8405sfwon across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for g8405sfwon (version 0.0.1).

Malicious package

g8405sfwonRubyGems

Advisory published Jul 7, 2026Updated Sep 24, 2026

g8405sfwon is a confirmed malicious RubyGems package (MAL-2026-7708) 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 g8405sfwon (RubyGems)

MAL-2026-7708

Immediate action

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

gem uninstall g8405sfwon

Malicious versions

1 flagged

0.0.1

Indicators of compromise (SHA-256)

e1cc3ad3db8cc8f543abe3641dd9aa6ad5d11a0749aebc530d17a769b0fd9798

ca352f73ee8e925364c7941904eb71c5afe44467d734602e8701101261251873

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for g8405sfwon (version 0.0.1).
If you installed it — respond
Remove g8405sfwon 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 g8405sfwon 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. g8405sfwon 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-2026-02359RLUA-2026-08137

References

github.com

Credits

ReversingLabs · finder

Detect & block this

O3 blocks g8405sfwon-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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