Which versions of python-guild are malicious?

The following PyPI versions of python-guild are flagged malicious: 1.0.1. Treat any of these as compromised.

How do I remediate python-guild if I installed it?

python-guild 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 python-guild — how do I know if it already compromised me?

If python-guild 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 python-guild part of a known attack campaign?

Yes — python-guild is associated with the RLMA-2024-09024, spl-types-rentry-2024-07, RLUA-2026-00665 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 python-guild across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for python-guild (version 1.0.1).

Malicious package

python-guildPyPI

Advisory published Jul 3, 2024Updated Mar 19, 2026

python-guild is a confirmed malicious PyPI package (MAL-2024-10133) that steals credentials and exfiltrates sensitive data (malicious version 1.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in python-guild (PyPI)

MAL-2024-10133

Immediate action

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

pip uninstall python-guild

What this malware does

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: spl-types-rentry-2024-07

Reasons (based on the campaign):

infostealer
crypto-related

Malicious versions

1 flagged

1.0.1

Indicators of compromise (SHA-256)

8b489da05e083d417aa16e0a0a0f6cd1b5e65b4ac634d298227505ae3b51b4c6

9bac5f81640e36153c1e0e5be192aea279c02675013295bfce88b8e919d28a94

e80e97d90a6fe86d94b3d80feac7f7f53e0eb1ee29320ebb7612cdf7a5449f3d

b2f5380fe9d9836754d9f555e2794872d932d38be521085dc195572e86e8eb73

69b25db52530b501f15b70406727b607f309153a7608ac7480d80166702cede3

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for python-guild (version 1.0.1).
If you installed it — respond
python-guild 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 python-guild 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. python-guild on PyPI has been identified as a malicious package (version 1.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-09024spl-types-rentry-2024-07RLUA-2026-00665

References

Credits

Kamil Mańkowski (kam193)
ReversingLabs · finder

Detect & block this

O3 blocks python-guild-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

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