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Malicious package

zwknum6RubyGems

Malicious code in zwknum6 (RubyGems) Remove it immediately and rotate any exposed credentials.

MAL-2026-9869
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall zwknum6

Malicious versions

1 flagged
0.0.2773

Indicators of compromise (SHA-256)

8e9842539751e0512758b5f354cb5956b6bbba9522c6ab62418ffd58da44eef7

Detection & response playbook

Malicious package
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for zwknum6 (version 0.0.2773). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging zwknum6 across your stack and pipelines.

  2. If you installed it — respond

    Remove zwknum6 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 zwknum6 was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks zwknum6 before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. zwknum6 on RubyGems has been identified as a malicious package (version 0.0.2773 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-04520

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks zwknum6-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.

zwknum6 (RubyGems) malicious package — MAL-2026-9869 | O3 Security