Which versions of urz are malicious?

The following PyPI versions of urz are flagged malicious: 0.1. Treat any of these as compromised.

How do I remediate urz if I installed it?

Remove urz from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

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

If urz 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 urz part of a known attack campaign?

Yes — urz is associated with the RLMA-2024-04993, RLUA-2024-09475 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 urz across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for urz (version 0.1).

Malicious package

urzPyPI

urz is a confirmed malicious PyPI package (MAL-2024-6189) that executes malicious code on install (malicious version 0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in urz (PyPI)

MAL-2024-6189

Immediate action

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

pip uninstall urz

Malicious versions

1 flagged

0.1

Indicators of compromise (SHA-256)

797c80d6f7348b622d192e22fb1b1b2da536d9729384f9c4cba0cf52bad70f6b

e41b232f117f113e49a2bb3aaa447be0a46dbe3982252dcc47599ae76aca38f6

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for urz (version 0.1).
If you installed it — respond
Remove urz from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.
Did it already run?
If urz 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. urz on PyPI has been identified as a malicious package (version 0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-04993RLUA-2024-09475

Credits

ReversingLabs · finder

Detect & block this

O3 blocks urz-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database