Which versions of pythn are malicious?

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

How do I remediate pythn if I installed it?

pythn 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 pythn — how do I know if it already compromised me?

If pythn 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 pythn part of a known attack campaign?

Yes — pythn is associated with the RLMA-2024-09018, funcaptcha-ru 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 pythn across my projects, lockfiles, and CI pipelines?

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

Part of a larger attack: funcaptcha-ru published 161 malicious packages. See the full campaign →

Malicious package

pythnPyPI

Advisory published Jun 28, 2024Updated Dec 12, 2025

pythn is a confirmed malicious PyPI package (MAL-2024-10129) that steals credentials and exfiltrates sensitive data (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in pythn (PyPI)

MAL-2024-10129

Immediate action

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

pip uninstall pythn

What this malware does

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

Campaign: funcaptcha-ru

Reasons (based on the campaign):

infostealer

Malicious versions

1 flagged

1.0.0

Indicators of compromise (SHA-256)

67d5c393736f77776626520ed5f2d1129bf96080272bb582ce8de1e430363545

bb4517103a6dc4e170a9c982ff5e8f77fb027dcbee4bbf192c5d859317c9dded

18aa9075a46b75fee6201936b78d0c748d02750b892815a4d2fa7530a12a2ae2

4561502f40fc21ea44ff5fbd1a58812ebaa60ba3f3b5cbe3ab5e66ae50aae49c

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for pythn (version 1.0.0).
If you installed it — respond
pythn 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 pythn 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. pythn 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-2024-09018funcaptcha-ru

References

Credits

Kamil Mańkowski (kam193)
ReversingLabs · finder

Detect & block this

O3 blocks pythn-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

Explore

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