Which versions of zw_nobdr_week are malicious?

The following RubyGems versions of zw_nobdr_week are flagged malicious: 0.0.1337. Treat any of these as compromised.

How do I remediate zw_nobdr_week if I installed it?

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

If zw_nobdr_week 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 zw_nobdr_week part of a known attack campaign?

Yes — zw_nobdr_week is associated with the RLMA-2026-04477, RLUA-2026-10415 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 zw_nobdr_week across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for zw_nobdr_week (version 0.0.1337).

Malicious package

zw_nobdr_weekRubyGems

Advisory published Jul 7, 2026Updated Sep 24, 2026

zw_nobdr_week is a confirmed malicious RubyGems package (MAL-2026-9826) that executes malicious code on install (malicious version 0.0.1337). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in zw_nobdr_week (RubyGems)

MAL-2026-9826

Immediate action

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

gem uninstall zw_nobdr_week

Malicious versions

1 flagged

0.0.1337

Indicators of compromise (SHA-256)

e5ffd1324ee12440eb48414efafdf9ff88364950d1fa4aace48df8ac9bda1c2d

f5ed01a43272fd7ae02c9cbe013c819b9d4714722a129b594d7ab2f66103bfcc

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for zw_nobdr_week (version 0.0.1337).
If you installed it — respond
Remove zw_nobdr_week 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 zw_nobdr_week 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. zw_nobdr_week on RubyGems has been identified as a malicious package (version 0.0.1337 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-04477RLUA-2026-10415

References

Credits

ReversingLabs · finder

Detect & block this

O3 blocks zw_nobdr_week-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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