Which versions of swd8402 are malicious?

The following RubyGems versions of swd8402 are flagged malicious: 0.0.1. Treat any of these as compromised.

How do I remediate swd8402 if I installed it?

Remove swd8402 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 swd8402 — how do I know if it already compromised me?

If swd8402 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 swd8402 part of a known attack campaign?

Yes — swd8402 is associated with the RLMA-2026-03584, RLUA-2026-09497 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 swd8402 across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for swd8402 (version 0.0.1).

Malicious package

swd8402RubyGems

Advisory published Jul 7, 2026Updated Sep 24, 2026

swd8402 is a confirmed malicious RubyGems package (MAL-2026-8933) 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 swd8402 (RubyGems)

MAL-2026-8933

Immediate action

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

gem uninstall swd8402

Malicious versions

1 flagged

0.0.1

Indicators of compromise (SHA-256)

05caf7a11e991ce2f8285029fc9d92d8af77a945297c39d3c7e7fd844fed6144

3686e34af348db70f82ab53c1c5a48b4b0e6af7c8eae71cc142527b80b5831e4

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for swd8402 (version 0.0.1).
If you installed it — respond
Remove swd8402 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 swd8402 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. swd8402 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-2026-03584RLUA-2026-09497

References

github.com

Credits

ReversingLabs · finder

Detect & block this

O3 blocks swd8402-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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