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Malicious package

zexc4tj8o7ubolRubyGems

Malicious code in zexc4tj8o7ubol (RubyGems) Remove it immediately and rotate any exposed credentials.

MAL-2026-9564
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall zexc4tj8o7ubol

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

c83dee734e3582c7daf76a9b921966920d2980864f62268976a8bd06b3491821

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 zexc4tj8o7ubol (version 0.0.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging zexc4tj8o7ubol across your stack and pipelines.

  2. If you installed it — respond

    Remove zexc4tj8o7ubol 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 zexc4tj8o7ubol 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 zexc4tj8o7ubol 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. zexc4tj8o7ubol 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-2026-04215

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks zexc4tj8o7ubol-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.

zexc4tj8o7ubol (RubyGems) malicious package — MAL-2026-9564 | O3 Security