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Malicious package

lightgboostPyPI

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

MAL-2025-191781
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall lightgboost

What this malware does

Packages are designed to collect basic info about the user when importing them, and have no other purpose. While they claim to do so, some packages from the same uploader use confusing names, clearly suggesting the intention to harvest data from unintentional installations.

Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.

Campaign: 2025-02-pxz

Reasons (based on the campaign):

  • The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.

  • typosquatting

Malicious versions

4 flagged
1.1.11.1.21.1.31.1.4

Indicators of compromise (SHA-256)

3fd3a060a03299dbc51f4da7eb22da7503ad93f0a3347d23c0965dd2dda24e8a
03aea882aa08832e53ccfb267fe4b95c9ea4f24ea51ceeaaa4a85557e67ce15b
5ef72e3b6a7a1136f4bea0d3d1779e74ae3b5a9e49c87494cbb5c8bb8566a3ad

Detection & response playbook

Credential / info stealer
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for lightgboost (4 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging lightgboost across your stack and pipelines.

  2. If you installed it — respond

    lightgboost is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

  3. Did it already run?

    If lightgboost 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 lightgboost 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. lightgboost on PyPI has been identified as a malicious package (versions 1.1.1, 1.1.2, 1.1.3, 1.1.4 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2025-02-pxz

References

Credits

  • Kamil Mańkowski (kam193)

Detect & block this

O3 blocks lightgboost-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

lightgboost (PyPI) malicious package — MAL-2025-191781 | O3 Security