Which versions of zwan_cal_jana are malicious?

The following RubyGems versions of zwan_cal_jana are flagged malicious: 0.0.132. Treat any of these as compromised.

How do I remediate zwan_cal_jana if I installed it?

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

If zwan_cal_jana 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 zwan_cal_jana part of a known attack campaign?

Yes — zwan_cal_jana is associated with the RLMA-2026-04489, RLUA-2026-10427 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 zwan_cal_jana across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for zwan_cal_jana (version 0.0.132).

Malicious package

zwan_cal_janaRubyGems

Advisory published Jul 7, 2026Updated Sep 24, 2026

zwan_cal_jana is a confirmed malicious RubyGems package (MAL-2026-9838) that executes malicious code on install (malicious version 0.0.132). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in zwan_cal_jana (RubyGems)

MAL-2026-9838

Immediate action

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

gem uninstall zwan_cal_jana

Malicious versions

1 flagged

0.0.132

Indicators of compromise (SHA-256)

92669a2603a08f1fc2096e5fb6a3a77a853fe4f2a4996a808e294f9764528050

387a4c9df7fd9bfdcbd15503b70efc2abe32c0724ea5e74a0e1193b6f7c621ec

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for zwan_cal_jana (version 0.0.132).
If you installed it — respond
Remove zwan_cal_jana 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 zwan_cal_jana 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. zwan_cal_jana on RubyGems has been identified as a malicious package (version 0.0.132 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-04489RLUA-2026-10427

References

github.com

Credits

ReversingLabs · finder

Detect & block this

O3 blocks zwan_cal_jana-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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