Which versions of pytbon are malicious?

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

How do I remediate pytbon if I installed it?

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

If pytbon 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 pytbon part of a known attack campaign?

Yes — pytbon is associated with the RLMA-2024-09015, 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 pytbon across my projects, lockfiles, and CI pipelines?

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

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

Malicious package

pytbonPyPI

Advisory published Jun 28, 2024Updated Dec 12, 2025

pytbon is a confirmed malicious PyPI package (MAL-2024-10126) 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 pytbon (PyPI)

MAL-2024-10126

Immediate action

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

pip uninstall pytbon

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)

888a99d116166c9b3c9ee873fea51b92ee8709523a32c96804cda51cb46f7940

6f5078547528237776500d4f16f0d7e739cfe99b85750b40e48347e3a140cc41

7e897d020793f301d80ad877422b237986c99c6bad861618a93a53fe5a2b7c26

7e4ea005101b39894073d44555f289c1b29302185ae1b4aa535f5445404d6e18

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for pytbon (version 1.0.0).
If you installed it — respond
pytbon 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 pytbon 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. pytbon 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-2024-09015funcaptcha-ru

References

Credits

Kamil Mańkowski (kam193)
ReversingLabs · finder

Detect & block this

O3 blocks pytbon-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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