# pyfetcher (PyPI) malicious package — MAL-2024-10115 | O3 Security

Malicious package

# pyfetcherPyPI

Advisory published Aug 7, 2024·Updated Mar 19, 2026

pyfetcher is a confirmed malicious PyPI package (MAL-2024-10115) that steals credentials and exfiltrates sensitive data (malicious versions 1.7.2, 1.7.3, 1.7.4…). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in pyfetcher (PyPI)

MAL-2024-10115

Immediate action

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

pip uninstall pyfetcher

## What this malware does

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

Campaign: 2024-07-vaaai-netflixchecker

Reasons (based on the campaign):

-   Downloads and executes a remote executable.

## Malicious versions

4 flagged

1.7.21.7.31.7.41.7.5

## Indicators of compromise (SHA-256)

41c7d201360945bb1164c3a1701238ea37151b3f78bc0965137b2309dfa2639d

10c2ff4313c78f3d53898a30c36069c0e576a7e40db72f8119cbda67ee7f318b

4a689a2d20313b4d2681d50def7abed6ad72462be076e35056a6098556b1a246

6b2edcb5b83d97d4753b45ac26cb8439bfd90a8a2136115fced110ed4b3fde03

415787d837498a7de798a17ef66542f7619c681b213def171d5655d6686f3f1d

## Detection & response playbook

Credential / info stealer

1.  ### Find it
    
    Search your lockfiles and build artifacts for pyfetcher (4 malicious versions).
    
2.  ### If you installed it — respond
    
    pyfetcher 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.
    
3.  ### Did it already run?
    
    If pyfetcher 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. pyfetcher on PyPI has been identified as a malicious package (versions 1.7.2, 1.7.3, 1.7.4, 1.7.5 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

## Campaign

RLMA-2024-089262024-07-vaaai-netflixcheckerRLUA-2026-00631

## References

-   [sonatype.com](https://www.sonatype.com/blog/pyfetcher-netfetch-drop-netflix-checker-on-windows)
-   [security.snyk.io](https://security.snyk.io/vuln/SNYK-PYTHON-PYFETCHER-7924844)
-   [bad-packages.kam193.eu](https://bad-packages.kam193.eu/pypi/package/pyfetcher)

## Credits

-   Kamil Mańkowski (kam193)
-   ReversingLabs · finder

## Detect & block this

O3 blocks pyfetcher\-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](/malware-detection) [Runtime egress monitoring](/egress-monitor)

## Explore

[All malware advisories](/malware) [How O3 detects malware](/malware-database) [Vulnerability database](/vulnerability)