What does the chicopute malware do?

Importing the module starts an infostealer Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers. Campaign: 2025-11-mescouilles Reasons (based on the campaign): - infostealer - infostealer:kiwi - infostealer:cstealer - exfiltration-generic - exfiltration-browser-data - exfiltration-credentials - files-exfiltration - The package contains code to detect if it is running in a sandbox environment.

Which versions of chicopute are malicious?

The following PyPI versions of chicopute are flagged malicious: 0.0.1. Treat any of these as compromised.

How do I remediate chicopute if I installed it?

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

If chicopute 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 chicopute part of a known attack campaign?

Yes — chicopute is associated with the 2025-11-mescouilles, RLMA-2025-06557, RLUA-2026-00190 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 chicopute across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for chicopute (version 0.0.1).

Part of a larger attack: 2025-11-mescouilles published 10 malicious packages. See the full campaign →

Malicious package

chicoputePyPI

Advisory published Nov 24, 2025Updated Mar 19, 2026

chicopute is a confirmed malicious PyPI package (MAL-2025-191700) that steals credentials and exfiltrates sensitive data (malicious version 0.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in chicopute (PyPI)

MAL-2025-191700

Immediate action

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

pip uninstall chicopute

What this malware does

Importing the module starts an infostealer

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

Campaign: 2025-11-mescouilles

Reasons (based on the campaign):

infostealer
infostealer:kiwi
infostealer:cstealer
exfiltration-generic
exfiltration-browser-data
exfiltration-credentials
files-exfiltration
The package contains code to detect if it is running in a sandbox environment.

Malicious versions

1 flagged

0.0.1

Indicators of compromise (SHA-256)

ce2e0ec506e2660bdc4ddcf1d6eb00867adabbe7b08011258e8ccf1f6d2f4a15

d495090103e9ff8ca138e9ad2b40556ce900f92d07ac058463eb58f42edacc85

2501355a6bf6803d4011b86a0a3d18f334c044c7c51619a5afe0736ccd0aac18

d08bd64c77c0760d449af580afbd490814ced7938d048a0c06ddeca95eb055e1

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for chicopute (version 0.0.1).
If you installed it — respond
chicopute 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 chicopute 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. chicopute on PyPI has been identified as a malicious package (version 0.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2025-11-mescouillesRLMA-2025-06557RLUA-2026-00190

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193)
ReversingLabs · finder

Detect & block this

O3 blocks chicopute-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