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Malicious package

pycrypterexePyPI

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

MAL-2024-5681
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall pycrypterexe

Malicious versions

24 flagged
0.0.01.0.01.0.11.0.21.0.31.0.41.0.51.0.61.0.71.0.91.1.01.1.11.1.21.1.31.1.41.1.51.1.61.1.71.1.81.2.01.2.11.2.21.2.31.2.4

Indicators of compromise (SHA-256)

07318bc6dda30e3648ac5ce77a21d5b16568d6666eaf41dcab99a2dc8eec42dc
6e1acd8cb8d8fb5587772cbf5868d3fe5dce57c0ca825bd1307d5a62d84a0c48

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 pycrypterexe (24 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging pycrypterexe across your stack and pipelines.

  2. If you installed it — respond

    Remove pycrypterexe 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 pycrypterexe 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 pycrypterexe 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. pycrypterexe on PyPI has been identified as a malicious package (versions 0.0.0, 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, and 16 more flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-04464RLUA-2024-08901

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks pycrypterexe-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.

pycrypterexe (PyPI) malicious package — MAL-2024-5681 | O3 Security