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Malicious package

zwkopt9RubyGems

Malicious code in zwkopt9 (RubyGems) Remove it immediately and rotate any exposed credentials.

MAL-2026-9891
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall zwkopt9

Malicious versions

1 flagged
0.0.3498

Indicators of compromise (SHA-256)

da41a784226f59a70daa3d96d49bab1010b3fa73fd85a3cc309b6ecd330442bf

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 zwkopt9 (version 0.0.3498). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging zwkopt9 across your stack and pipelines.

  2. If you installed it — respond

    Remove zwkopt9 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 zwkopt9 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 zwkopt9 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. zwkopt9 on RubyGems has been identified as a malicious package (version 0.0.3498 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-04542

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks zwkopt9-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.

zwkopt9 (RubyGems) malicious package — MAL-2026-9891 | O3 Security