Which versions of zrzxbc10ab are malicious?

The following RubyGems versions of zrzxbc10ab are flagged malicious: 0.0.1. Treat any of these as compromised.

How do I remediate zrzxbc10ab if I installed it?

Remove zrzxbc10ab 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 zrzxbc10ab — how do I know if it already compromised me?

If zrzxbc10ab 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 zrzxbc10ab part of a known attack campaign?

Yes — zrzxbc10ab is associated with the RLMA-2026-04431, RLUA-2026-10369 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 zrzxbc10ab across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for zrzxbc10ab (version 0.0.1).

Malicious package

zrzxbc10abRubyGems

Advisory published Jul 7, 2026Updated Sep 24, 2026

zrzxbc10ab is a confirmed malicious RubyGems package (MAL-2026-9780) 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 zrzxbc10ab (RubyGems)

MAL-2026-9780

Immediate action

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

gem uninstall zrzxbc10ab

Malicious versions

1 flagged

0.0.1

Indicators of compromise (SHA-256)

5c9843f49126a993b0324d247940857413e36063d30d0ce524ec6dada6ec8b0c

8b5bb185b4d1bfe51614619819bfdf3c4873e46eea17780e2873e7362d8d15bc

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for zrzxbc10ab (version 0.0.1).
If you installed it — respond
Remove zrzxbc10ab 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 zrzxbc10ab 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. zrzxbc10ab 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-2026-04431RLUA-2026-10369

References

github.com

Credits

ReversingLabs · finder

Detect & block this

O3 blocks zrzxbc10ab-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

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