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Malicious package

rak-lab-yoav-orca-zrktd2cp5hjmo4x7PyPI

Advisory published Updated

rak-lab-yoav-orca-zrktd2cp5hjmo4x7 is a confirmed malicious PyPI package (MAL-2026-16241) that steals credentials and exfiltrates sensitive data (malicious version 9.9.9). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in rak-lab-yoav-orca-zrktd2cp5hjmo4x7 (PyPI)

MAL-2026-16241
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall rak-lab-yoav-orca-zrktd2cp5hjmo4x7

What this malware does

pypi package rak-lab-yoav-orca-zrktd2cp5hjmo4x7 version 9.9.9 ships a setup.py that, during pip install, reads the DEPLOYMENT_TOKEN environment variable and POSTs it as JSON to https://webhook.site/27c83a25-7d20-44e9-98ab-19954383f4b1 via urllib.request. The package has no functional payload: init.py is an empty stub docstring, no library API is exported, the version 9.9.9 and random-suffix name are consistent with a dependency-confusion lure designed to win resolution against an internal package name. The install-time HTTP POST to a non-publisher webhook.site collector is a working credential-exfiltration primitive; a conditional branch limits execution to a specific GitHub Actions repository context, but the exfil code path is fully implemented and reachable whenever that condition is met. The webhook.site destination is not associated with any legitimate publisher infrastructure.

Package appears to be internal test of dependency confusion.

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
9.9.9

Indicators of compromise (SHA-256)

ee8eb9dfebb1388345acb8b7185f69adcf072f02ea058bc3d64a81e91733b5d0
486630eaee2b9eb50d03d73886a14b7249b0c28fda2cb3f6a13565c8cd38a9bb

Detection & response playbook

Credential / info stealer

  1. Find it

    Search your lockfiles and build artifacts for rak-lab-yoav-orca-zrktd2cp5hjmo4x7 (version 9.9.9).

  2. If you installed it — respond

    rak-lab-yoav-orca-zrktd2cp5hjmo4x7 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 rak-lab-yoav-orca-zrktd2cp5hjmo4x7 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. rak-lab-yoav-orca-zrktd2cp5hjmo4x7 on PyPI has been identified as a malicious package (version 9.9.9 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GENERIC-standard-pypi-install-pentestIN-MAL-2026-020115

References

Credits

  • Amazon Inspector · finder
  • Kamil Mańkowski (kam193) · reporter

Detect & block this

O3 blocks rak-lab-yoav-orca-zrktd2cp5hjmo4x7-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database
rak-lab-yoav-orca-zrktd2cp5hjmo4x7 (PyPI) malicious package — MAL-2026-16241 | O3 Security