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Malicious package

slnbxwiltsbkRubyGems

Advisory published Updated

slnbxwiltsbk is a confirmed malicious RubyGems package (MAL-2026-8650) 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 slnbxwiltsbk (RubyGems)

MAL-2026-8650
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall slnbxwiltsbk

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

233b64e96e9b1ef1cb2383d64158f60f9ced8261cb331185767d6f7b6ffcfcbc
5747ed3f2bf86d2717a90c1c6d28e3ea6c5e1d703c1fedb88a2fa870904f6b94

Detection & response playbook

Malicious package
  1. Find it

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

  2. If you installed it — respond

    Remove slnbxwiltsbk 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 slnbxwiltsbk 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. slnbxwiltsbk 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-2026-03301RLUA-2026-09199

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks slnbxwiltsbk-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

slnbxwiltsbk (RubyGems) malicious package — MAL-2026-8650 | O3 Security