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Malicious package

zpx52507kfRubyGems

Advisory published Updated

zpx52507kf is a confirmed malicious RubyGems package (MAL-2026-9678) 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 zpx52507kf (RubyGems)

MAL-2026-9678
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall zpx52507kf

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

e4fee36ba7d9a438b033df3459ff339078cce017b070277362bd8aec9e0dada4
cc5be380107a6fc1bf19b4dc5196b74bfcdf07144cd79e372992b9fa614c56b9

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for zpx52507kf (version 0.0.1).

  2. If you installed it — respond

    Remove zpx52507kf 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 zpx52507kf 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. zpx52507kf 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-2026-04329RLUA-2026-10267

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks zpx52507kf-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

zpx52507kf (RubyGems) malicious package — MAL-2026-9678 | O3 Security