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Malicious package

shan-lib-pocPyPI

Advisory published Updated

shan-lib-poc is a confirmed malicious PyPI package (MAL-2026-2843) that steals credentials and exfiltrates sensitive data (malicious versions 1.0, 1.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in shan-lib-poc (PyPI)

MAL-2026-2843
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall shan-lib-poc

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

2 flagged
1.01.0.1

Indicators of compromise (SHA-256)

f6c2f4a0560b1811eba11c9fd304f7441ab7e04f4e569e01bdfe06aba6722edb

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for shan-lib-poc (2 malicious versions).

  2. If you installed it — respond

    shan-lib-poc 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 shan-lib-poc was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. shan-lib-poc on PyPI has been identified as a malicious package (versions 1.0, 1.0.1 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) · analyst

Detect & block this

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

Explore

shan-lib-poc (PyPI) malicious package — MAL-2026-2843 | O3 Security