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Malicious package

zwkopt19RubyGems

Malicious code in zwkopt19 (RubyGems) Remove it immediately and rotate any exposed credentials.

MAL-2026-9882
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall zwkopt19

Malicious versions

1 flagged
0.0.3511

Indicators of compromise (SHA-256)

2369022ca9d657c6e7cfc6d4f854853e9671efc5d46a11759255876a5c91bd25

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 zwkopt19 (version 0.0.3511). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging zwkopt19 across your stack and pipelines.

  2. If you installed it — respond

    Remove zwkopt19 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 zwkopt19 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 zwkopt19 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. zwkopt19 on RubyGems has been identified as a malicious package (version 0.0.3511 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-04533

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks zwkopt19-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.

zwkopt19 (RubyGems) malicious package — MAL-2026-9882 | O3 Security