Which versions of falask are malicious?

The following PyPI versions of falask are flagged malicious: 3.1.8.dev0. Treat any of these as compromised.

How do I remediate falask if I installed it?

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

If falask 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 falask part of a known attack campaign?

Yes — falask is associated with the RLMA-2025-00461, 2024-12-reqesst, RLUA-2026-00313 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 falask across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for falask (version 3.1.8.dev0).

Part of a larger attack: 2024-12-reqesst published 12 malicious packages. See the full campaign →

Malicious package

falaskPyPI

Advisory published Dec 24, 2024Updated Mar 19, 2026

falask is a confirmed malicious PyPI package (MAL-2025-922) that steals credentials and exfiltrates sensitive data (malicious version 3.1.8.dev0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in falask (PyPI)

MAL-2025-922

Immediate action

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

pip uninstall falask

What this malware does

Importing the module downloads and starts an infostealer attempting to exfiltrate data and establishing persistence through autorun directory.

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

Campaign: 2024-12-reqesst

Reasons (based on the campaign):

infostealer
peristence-autorun
typosquatting
exfiltration-generic
Downloads and executes a remote executable.
clones-real-package
dependency-confusion
exfiltration-browser-data
exfiltration-crypto

Malicious versions

1 flagged

3.1.8.dev0

Indicators of compromise (SHA-256)

a26c2ee915728b1baa03aaff6986ebd4deb0c43d97de7108573d39b26096d8e1

2b3078ee717a65fd066d905ae1262eeb53efa4cd61a3568063bec062a5770961

95241c523519ca2e69e19dc499161e38f895f76fb8f76114acf4d583d8288d66

b3b2d7bef8ef5906775f3653896d991ca0b83f8a7787c3115bd658fd38edd227

78ced468f10bd407f5ef060d327dba79180346de279d1bb30a208d4692b53c03

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for falask (version 3.1.8.dev0).
If you installed it — respond
falask 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 falask 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. falask on PyPI has been identified as a malicious package (version 3.1.8.dev0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-004612024-12-reqesstRLUA-2026-00313

References

Credits

Kamil Mańkowski (kam193)
ReversingLabs · finder

Detect & block this

O3 blocks falask-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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