Which versions of celery-routr are malicious?

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

How do I remediate celery-routr if I installed it?

Remove celery-routr 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 celery-routr — how do I know if it already compromised me?

If celery-routr 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 celery-routr part of a known attack campaign?

Yes — celery-routr is associated with the RLMA-2025-04119, RLUA-2025-04751, RLUA-2025-05588 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 celery-routr across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for celery-routr (version 1.0.0).

Malicious package

celery-routrPyPI

Advisory published Aug 28, 2025Updated Dec 2, 2025

celery-routr is a confirmed malicious PyPI package (MAL-2025-41628) 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 celery-routr (PyPI)

MAL-2025-41628

Immediate action

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

pip uninstall celery-routr

Malicious versions

1 flagged

1.0.0

Indicators of compromise (SHA-256)

25d20f0240bb74a04f5d6dfc22d61d2eb50e4db2e08a0dc0bf5cc2e47bd0ece7

5a368915aeb03654b1d956ebc673d29f1022ea01b15b45c3219acfbe8c72b2b0

59dbb5f3f228cedeba902a34082c34a7548d50bddf66262fee5442298b6086ac

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for celery-routr (version 1.0.0).
If you installed it — respond
Remove celery-routr 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 celery-routr 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. celery-routr 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

RLMA-2025-04119RLUA-2025-04751RLUA-2025-05588

References

github.com

Credits

ReversingLabs · finder

Detect & block this

O3 blocks celery-routr-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

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