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Malicious package

typing-extensions-plusPyPI

Malicious code in typing-extensions-plus (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2025-191914
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall typing-extensions-plus

What this malware does

Importing the module starts code responsible of exfiltrating crypto tokens and API keys. Package imitates typing-extensions

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2025-06-typing-extensions-plus

Reasons (based on the campaign):

  • crypto-related

  • exfiltration-credentials

  • impersonation

Malicious versions

3 flagged
1.0.03.1.23.1.3

Indicators of compromise (SHA-256)

6fc7f8094ed842ae839c492ecadef9a6ea0000bb7a6f55c9b930b94f9c962117
78c15498f688e49c1d6a8b369eae95e0e77016cd05d74f89a72fa9e845c71da5
6395d53ca1519beee868486afb937e0771c97214d802c1c9eac9669c0e6b990a

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

  2. If you installed it — respond

    typing-extensions-plus 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 typing-extensions-plus 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 typing-extensions-plus 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. typing-extensions-plus on PyPI has been identified as a malicious package (versions 1.0.0, 3.1.2, 3.1.3 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2025-06-typing-extensions-plus

References

Credits

  • Kamil Mańkowski (kam193)

Detect & block this

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

typing-extensions-plus (PyPI) malicious package — MAL-2025-191914 | O3 Security