Which versions of zwkopt12 are malicious?

The following RubyGems versions of zwkopt12 are flagged malicious: 0.0.3502. Treat any of these as compromised.

How do I remediate zwkopt12 if I installed it?

Remove zwkopt12 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 zwkopt12 — how do I know if it already compromised me?

If zwkopt12 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 zwkopt12 part of a known attack campaign?

Yes — zwkopt12 is associated with the RLMA-2026-04526, RLUA-2026-10464 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 zwkopt12 across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for zwkopt12 (version 0.0.3502).

Malicious package

zwkopt12RubyGems

Advisory published Jul 7, 2026Updated Sep 24, 2026

zwkopt12 is a confirmed malicious RubyGems package (MAL-2026-9875) that executes malicious code on install (malicious version 0.0.3502). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in zwkopt12 (RubyGems)

MAL-2026-9875

Immediate action

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

gem uninstall zwkopt12

Malicious versions

1 flagged

0.0.3502

Indicators of compromise (SHA-256)

61100e5a9b189c8dbbb501e327faea22b206ce89957853f7d3dbba71fa6330a2

4e41e15ca32ca6659e3ff0b8c0e18e5c922b223965bd2d0dda3c4dde732578a0

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for zwkopt12 (version 0.0.3502).
If you installed it — respond
Remove zwkopt12 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 zwkopt12 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. zwkopt12 on RubyGems has been identified as a malicious package (version 0.0.3502 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-04526RLUA-2026-10464

References

github.com

Credits

ReversingLabs · finder

Detect & block this

O3 blocks zwkopt12-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

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