Which versions of fifam5tl are malicious?

The following PyPI versions of fifam5tl are flagged malicious: 0.1.1. Treat any of these as compromised.

How do I remediate fifam5tl if I installed it?

fifam5tl 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 fifam5tl — how do I know if it already compromised me?

If fifam5tl 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 fifam5tl part of a known attack campaign?

Yes — fifam5tl is associated with the RLMA-2025-04766, 2025-08-k7eel, RLUA-2026-00324 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 fifam5tl across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for fifam5tl (version 0.1.1).

Part of a larger attack: 2025-08-k7eel published 31 malicious packages. See the full campaign →

Malicious package

fifam5tlPyPI

Advisory published Aug 24, 2025Updated Mar 19, 2026

fifam5tl is a confirmed malicious PyPI package (MAL-2025-47765) that steals credentials and exfiltrates sensitive data (malicious version 0.1.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in fifam5tl (PyPI)

MAL-2025-47765

Immediate action

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

pip uninstall fifam5tl

What this malware does

Importing the module downloads and executes widely recognized malware

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

Campaign: 2025-08-k7eel

Reasons (based on the campaign):

Downloads and executes a remote executable.
malware

Malicious versions

1 flagged

0.1.1

Indicators of compromise (SHA-256)

19936e605083024367eccb33b3d9c739d2d48c765f83f92807d770ec8c3c6fde

9e377224d82a6212e50d83caa04d4ccef14c4ea9e1bea1060b34330a01b6d02d

950882b4ee8d998f2521e9f90e402c3414f4b2872fd10f2cd8833ecfd1053a74

4eed89de8f61efe275930c828141d1ae1db570bd271d2ea25e05ecc10b0a6ab2

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for fifam5tl (version 0.1.1).
If you installed it — respond
fifam5tl 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 fifam5tl 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. fifam5tl on PyPI has been identified as a malicious package (version 0.1.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-047662025-08-k7eelRLUA-2026-00324

References

Credits

Kamil Mańkowski (kam193)
ReversingLabs · finder

Detect & block this

O3 blocks fifam5tl-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

All malware advisories How O3 detects malware Vulnerability database