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Malicious package

zmodb4045RubyGems

Advisory published Updated

zmodb4045 is a confirmed malicious RubyGems package (MAL-2026-9665) 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 zmodb4045 (RubyGems)

MAL-2026-9665
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall zmodb4045

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

0592becdf52e7971da15f86db3714e3d171a9e9cc2d1b3da65e8f4973c1e35da
9e0037e62827fd67723bae8bd0186857559946ce42bccb180c63fb46faf4af2c

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for zmodb4045 (version 0.0.1).

  2. If you installed it — respond

    Remove zmodb4045 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 zmodb4045 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. zmodb4045 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-2026-04316RLUA-2026-10253

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks zmodb4045-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

zmodb4045 (RubyGems) malicious package — MAL-2026-9665 | O3 Security