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Malicious package

slnstep8425RubyGems

Advisory published Updated

slnstep8425 is a confirmed malicious RubyGems package (MAL-2026-8759) 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 slnstep8425 (RubyGems)

MAL-2026-8759
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall slnstep8425

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

558b2b5ed1d4f501817f767faeee6cd7ed502dbca18b8cdba9a1ca718c2fd931
681b9999689af5093e23f096bf07b16b95b3b1d5f7847ee4ad9aabfbe3b85248

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for slnstep8425 (version 0.0.1).

  2. If you installed it — respond

    Remove slnstep8425 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 slnstep8425 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. slnstep8425 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-2026-03410RLUA-2026-09308

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks slnstep8425-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

slnstep8425 (RubyGems) malicious package — MAL-2026-8759 | O3 Security