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Malicious package

wmwk6nobabRubyGems

Advisory published Updated

wmwk6nobab is a confirmed malicious RubyGems package (MAL-2026-9405) 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 wmwk6nobab (RubyGems)

MAL-2026-9405
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall wmwk6nobab

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

5062a61cf96002d1f2892834c244b9c11713be0abfe2b14c4c7bdc75ddf5d06d
eeda4e46436257c77fe9357d7be07b9712f111ae92a1a8872fc6b276fcda97f5

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for wmwk6nobab (version 0.0.1).

  2. If you installed it — respond

    Remove wmwk6nobab 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.

  3. Did it already run?

    If wmwk6nobab 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. wmwk6nobab 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-2026-04056RLUA-2026-09986

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks wmwk6nobab-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.

Explore

wmwk6nobab (RubyGems) malicious package — MAL-2026-9405 | O3 Security