Which versions of brolool4141412 are malicious?

The following PyPI versions of brolool4141412 are flagged malicious: 1.0.0. Treat any of these as compromised.

How do I remediate brolool4141412 if I installed it?

Remove brolool4141412 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 brolool4141412 — how do I know if it already compromised me?

If brolool4141412 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 brolool4141412 part of a known attack campaign?

Yes — brolool4141412 is associated with the GENERIC-simple-tests 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 brolool4141412 across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for brolool4141412 (version 1.0.0).

Malicious package

brolool4141412PyPI

Advisory published Dec 31, 2025Updated Dec 31, 2025

brolool4141412 is a confirmed malicious PyPI package (MAL-2025-192989) that executes malicious code on install (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in brolool4141412 (PyPI)

MAL-2025-192989

Immediate action

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

pip uninstall brolool4141412

What this malware does

Package tests possible malicious actions during installation by starting notepad. There is no other functionality, it's clearly a test of possible malicious actions.

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-simple-tests

Reasons (based on the campaign):

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

Malicious versions

1 flagged

1.0.0

Indicators of compromise (SHA-256)

26b5ad1d170ede931c108f8a9d4342347b2983ae9fc5330b25ddb1dcc4132eb7

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for brolool4141412 (version 1.0.0).
If you installed it — respond
Remove brolool4141412 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 brolool4141412 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. brolool4141412 on PyPI has been identified as a malicious package (version 1.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GENERIC-simple-tests

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193) · analyst

Detect & block this

O3 blocks brolool4141412-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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