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Malicious package

cloudx-basePyPI

Advisory published Updated

cloudx-base is a confirmed malicious PyPI package (MAL-2025-6480) that steals credentials and exfiltrates sensitive data (malicious versions 0.1.12, 1.2.0, 1.2.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in cloudx-base (PyPI)

MAL-2025-6480
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall cloudx-base

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

3 flagged
0.1.121.2.01.2.1

Indicators of compromise (SHA-256)

4bb2f7047ec34a36a64dcf7a0963fc13979e8685c6d0c4b492a6c767042f12f7
02398a8a3bbb2694d84660a412047911960c6a743176d20b3127262057b7da49
e6149ee730ff938a43a0991fe084446193db7c0a8c7269623f84679ed6378b3c
2e2d2c15300b9d639ce9e21b382a2658b9ba22fdb6f9c7cffabcf946193826b7
7968a6336370fee9a1051ec046892291f3f60abbd47f548f10630e5eb8617e22

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for cloudx-base (3 malicious versions).

  2. If you installed it — respond

    cloudx-base 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 cloudx-base 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. cloudx-base on PyPI has been identified as a malicious package (versions 0.1.12, 1.2.0, 1.2.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-03565GENERIC-standard-pypi-install-pentestRLUA-2026-00198

References

Credits

  • Kamil Mańkowski (kam193)
  • ReversingLabs · finder

Detect & block this

O3 blocks cloudx-base-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

cloudx-base (PyPI) malicious package — MAL-2025-6480 | O3 Security