Which versions of zpx52521os are malicious?

The following RubyGems versions of zpx52521os are flagged malicious: 0.0.1. Treat any of these as compromised.

How do I remediate zpx52521os if I installed it?

Remove zpx52521os 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.

I already installed zpx52521os — how do I know if it already compromised me?

If zpx52521os 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.

Is zpx52521os part of a known attack campaign?

Yes — zpx52521os is associated with the RLMA-2026-04333, RLUA-2026-10271 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find zpx52521os across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for zpx52521os (version 0.0.1).

Malicious package

zpx52521osRubyGems

Advisory published Jul 7, 2026Updated Sep 24, 2026

zpx52521os is a confirmed malicious RubyGems package (MAL-2026-9682) 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 zpx52521os (RubyGems)

MAL-2026-9682

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

gem uninstall zpx52521os

Malicious versions

1 flagged

0.0.1

Indicators of compromise (SHA-256)

1c570e96492d7070c019b0c2e8cd115efc306153648e29b18a7d20e40924b354

677da25b32b0bbbfe061ebf34dcbd08016b608a83afb82997972178d01bee770

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for zpx52521os (version 0.0.1).
If you installed it — respond
Remove zpx52521os 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.
Did it already run?
If zpx52521os 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. zpx52521os 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-2026-04333RLUA-2026-10271

References

github.com

Credits

ReversingLabs · finder

Detect & block this

O3 blocks zpx52521os-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.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database