Which versions of swa8402foss are malicious?

The following RubyGems versions of swa8402foss are flagged malicious: 0.0.1. Treat any of these as compromised.

How do I remediate swa8402foss if I installed it?

Remove swa8402foss 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 swa8402foss — how do I know if it already compromised me?

If swa8402foss 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 swa8402foss part of a known attack campaign?

Yes — swa8402foss is associated with the RLMA-2026-03560, RLUA-2026-09473 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 swa8402foss across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for swa8402foss (version 0.0.1).

Malicious package

swa8402fossRubyGems

Advisory published Jul 7, 2026Updated Sep 24, 2026

swa8402foss is a confirmed malicious RubyGems package (MAL-2026-8909) 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 swa8402foss (RubyGems)

MAL-2026-8909

Immediate action

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

gem uninstall swa8402foss

Malicious versions

1 flagged

0.0.1

Indicators of compromise (SHA-256)

a4ec857309d1e590d1d28832ad7c849fa2634860d822b9599939798b2a8e6c8b

cbe4f63895a371aa7dbfbb0c9a4f526a4287d7dd41b0aad11585185c9d5fc19e

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for swa8402foss (version 0.0.1).
If you installed it — respond
Remove swa8402foss 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 swa8402foss 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. swa8402foss 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-2026-03560RLUA-2026-09473

References

github.com

Credits

ReversingLabs · finder

Detect & block this

O3 blocks swa8402foss-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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