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Malicious package

slnfive8125RubyGems

Advisory published Updated

slnfive8125 is a confirmed malicious RubyGems package (MAL-2026-8676) 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 slnfive8125 (RubyGems)

MAL-2026-8676
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall slnfive8125

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

d9299c0c31b46f31baef1e1c14bd2838f585893a248e54843531ce0d8deb9f2c
a6a93836ed8ab3bbde25f48ee3e5d685cd740743f793cdda49d78dee8a332d09

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for slnfive8125 (version 0.0.1).

  2. If you installed it — respond

    Remove slnfive8125 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 slnfive8125 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. slnfive8125 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-2026-03327RLUA-2026-09225

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks slnfive8125-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

slnfive8125 (RubyGems) malicious package — MAL-2026-8676 | O3 Security