Which versions of uuss are malicious?

The following PyPI versions of uuss are flagged malicious: 912.6. Treat any of these as compromised.

How do I remediate uuss if I installed it?

uuss 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.

I already installed uuss — how do I know if it already compromised me?

If uuss 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.

Is uuss part of a known attack campaign?

Yes — uuss is associated with the RLMA-2024-11204, 2024-11-byted-dast, RLUA-2026-00883 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find uuss across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for uuss (version 912.6).

Part of a larger attack: 2024-11-byted-dast published 183 malicious packages. See the full campaign →

Malicious package

uussPyPI

Advisory published Nov 6, 2024Updated Mar 19, 2026

uuss is a confirmed malicious PyPI package (MAL-2024-11743) that steals credentials and exfiltrates sensitive data (malicious version 912.6). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in uuss (PyPI)

MAL-2024-11743

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

pip uninstall uuss

What this malware does

A campaign of probably pentest packages flooding PYPI. Installing the package or importing the module triggers reporting basic info like hostname, path and the username to the package author. There is no other purpose of the package.

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: 2024-11-byted-dast

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.
typosquatting
dependency-confusion

Malicious versions

1 flagged

912.6

Indicators of compromise (SHA-256)

fceb58fc6decb012e4bb8da97811228296662125d6335b8b4d4f3c243a11051f

d2bc618deb4dbee39024f2416a25c6048259800b9a9e8355914f1c1832201118

3aba3f1500b7719fa1de7286cb4dbb6b3be60b96ae81317ec3ffe095df647c04

d030769ec5843327a2e401aea4004215619b3dce4c969f6a70e2b1a58a0a2c1a

dee3819d31de7c09def4d3ab76d051ce8ec4dc1534cdbc8f918dfa1deff4882d

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for uuss (version 912.6).
If you installed it — respond
uuss 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.
Did it already run?
If uuss 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. uuss on PyPI has been identified as a malicious package (version 912.6 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-112042024-11-byted-dastRLUA-2026-00883

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193)
ReversingLabs · finder

Detect & block this

O3 blocks uuss-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

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