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Malicious package

sxzPyPI

Malicious code in sxz (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2025-3472
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall sxz

Malicious versions

3 flagged
1.31.41.7

Indicators of compromise (SHA-256)

cb7c992448f85c09052aaa969e52e2dc2fa2b83f7fce036ab386effadbbccca0

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 sxz (3 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging sxz across your stack and pipelines.

  2. If you installed it — respond

    Remove sxz 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 sxz 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 sxz 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. sxz on PyPI has been identified as a malicious package (versions 1.3, 1.4, 1.7 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-02538

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks sxz-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.

sxz (PyPI) malicious package — MAL-2025-3472 | O3 Security