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Malicious package

sys-scikit-learnPyPI

Malicious code in sys-scikit-learn (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2023-1416
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall sys-scikit-learn

What this malware does

The OpenSSF Package Analysis project identified 'sys-scikit-learn' @ 17.8.18 (pypi) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.

Malicious versions

1 flagged
17.8.18

Indicators of compromise (SHA-256)

a43a0e5d5c9f583954d954b1a27badf0220728b50a05983479b1e2e212e8c16e

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 sys-scikit-learn (version 17.8.18). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging sys-scikit-learn across your stack and pipelines.

  2. If you installed it — respond

    Remove sys-scikit-learn 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 sys-scikit-learn 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 sys-scikit-learn 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. sys-scikit-learn on PyPI has been identified as a malicious package (version 17.8.18 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Credits

  • OpenSSF: Package Analysis · finder

Detect & block this

O3 blocks sys-scikit-learn-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.

sys-scikit-learn (PyPI) malicious package — MAL-2023-1416 | O3 Security