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Malicious package

zlfr29814RubyGems

Advisory published Updated

zlfr29814 is a confirmed malicious RubyGems package (MAL-2026-9654) 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 zlfr29814 (RubyGems)

MAL-2026-9654
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall zlfr29814

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

fb5f8a79f3d860ff0e837eb10f22169182a879dff4c099a10c65794344a2f107
b3d7b4250bf458f17ba6c1694e0b47e3bdbd183c5a44772a5d9f8593a858c55f

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for zlfr29814 (version 0.0.1).

  2. If you installed it — respond

    Remove zlfr29814 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 zlfr29814 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. zlfr29814 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-2026-04305RLUA-2026-10242

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks zlfr29814-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

zlfr29814 (RubyGems) malicious package — MAL-2026-9654 | O3 Security