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Malicious package

bioformatsPyPI

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

MAL-2025-6462
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall bioformats

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

1eaf7880c9268ebf8ea2cc72d700c527a4f0b8bcac94d33994f4beac1dce4244

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 bioformats (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 bioformats across your stack and pipelines.

  2. If you installed it — respond

    Remove bioformats 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 bioformats 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 bioformats 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. bioformats 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-2025-03547

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks bioformats-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.

bioformats (PyPI) malicious package — MAL-2025-6462 | O3 Security