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Malicious package

mb-commonsPyPI

Malicious code in mb-commons (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2025-6546
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall mb-commons

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

48c2b56d6a2f34fe2e7c9a87eac2818b3c591a80f1a39688f44b2f5d7c8c9112

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 mb-commons (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 mb-commons across your stack and pipelines.

  2. If you installed it — respond

    Remove mb-commons 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 mb-commons 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 mb-commons 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. mb-commons on PyPI 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-2025-03643

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks mb-commons-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.

mb-commons (PyPI) malicious package — MAL-2025-6546 | O3 Security