Which versions of urlllib321 are malicious?

The following PyPI versions of urlllib321 are flagged malicious: 2.7.0, 2.7.1. Treat any of these as compromised.

How do I remediate urlllib321 if I installed it?

urlllib321 is a typosquat — you almost certainly intended a legitimately-named package. Remove urlllib321, install the correct package, and rotate any secrets exposed during the install since post-install scripts may have already run.

I already installed urlllib321 — how do I know if it already compromised me?

If urlllib321 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 urlllib321 part of a known attack campaign?

Yes — urlllib321 is associated with the GENERIC-local-typosquatting 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 urlllib321 across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for urlllib321 (2 malicious versions).

Malicious package

urlllib321PyPI

urlllib321 is a confirmed malicious PyPI package (MAL-2026-6759) that typosquats a legitimate package to trick installs (malicious versions 2.7.0, 2.7.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in urlllib321 (PyPI)

MAL-2026-6759

Immediate action

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

pip uninstall urlllib321

What this malware does

Package is a typosquatting or dependency confusion attempt with a low-harm local-only action, like leaving a flag file.

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-local-typosquatting

Reasons (based on the campaign):

dependency-confusion
The package overrides the install command in setup.py to execute malicious code during installation.
typosquatting

Malicious versions

2 flagged

2.7.02.7.1

Indicators of compromise (SHA-256)

376c7a8609fa48f74e0229f95c4fe5a4e4a4c94e923da4ed11e8a1f475807127

Detection & response playbook

Typosquat

Find it
Search your lockfiles and build artifacts for urlllib321 (2 malicious versions).
If you installed it — respond
urlllib321 is a typosquat — you almost certainly intended a legitimately-named package. Remove urlllib321, install the correct package, and rotate any secrets exposed during the install since post-install scripts may have already run.
Did it already run?
If urlllib321 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. urlllib321 on PyPI has been identified as a malicious package (versions 2.7.0, 2.7.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GENERIC-local-typosquatting

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193) · analyst

Detect & block this

O3 blocks urlllib321-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

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