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Malicious package

slncmuayliRubyGems

Advisory published Updated

slncmuayli is a confirmed malicious RubyGems package (MAL-2026-8663) 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 slncmuayli (RubyGems)

MAL-2026-8663
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall slncmuayli

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

7a092c25342c8ad332226319b8f22ee28f29f1218c65348d711d5e76b7cd4def
596b9cdd9d6539f9eab0ffea0fa2ba214c2586d7e383a2ca7a9b01fb716fe3bb

Detection & response playbook

Malicious package
  1. Find it

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

  2. If you installed it — respond

    Remove slncmuayli 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.

  3. Did it already run?

    If slncmuayli 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. slncmuayli 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-2026-03314RLUA-2026-09212

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks slncmuayli-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.

Explore

slncmuayli (RubyGems) malicious package — MAL-2026-8663 | O3 Security