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Malicious package

chunqiuwestj-pkg-westj137PyPI

Malicious code in chunqiuwestj-pkg-westj137 (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2024-12235
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall chunqiuwestj-pkg-westj137

What this malware does

Installing the package or importing the module exfiltrates basic information about the host, and the package has no other purpose.

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: GENERIC-standard-pypi-install-pentest

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.

  • The package overrides the install command in setup.py to execute malicious code during installation.

Malicious versions

1 flagged
0.3.0

Indicators of compromise (SHA-256)

0d7a8fc6ba1ad64f36c6e62ec17a1a85007b089841d7e8581b2175bfc7eac1ed
03ad250cd789424d92dd1351d15a218d3950be367950c4fc129cf866423a7b8e
fe3c7feab55eb5454322bf516a4656107b5f9020b163a3caa738fd05d342f60e

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 chunqiuwestj-pkg-westj137 (version 0.3.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging chunqiuwestj-pkg-westj137 across your stack and pipelines.

  2. If you installed it — respond

    chunqiuwestj-pkg-westj137 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 chunqiuwestj-pkg-westj137 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 chunqiuwestj-pkg-westj137 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. chunqiuwestj-pkg-westj137 on PyPI has been identified as a malicious package (version 0.3.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GENERIC-standard-pypi-install-pentest

References

Credits

  • Kamil Mańkowski (kam193)

Detect & block this

O3 blocks chunqiuwestj-pkg-westj137-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

chunqiuwestj-pkg-westj137 (PyPI) malicious package — MAL-2024-12235 | O3 Security