MALICIOUS (1) package from Python Package Index.

1. The campaign has clearly malicious intent, like infostealers.

kvstore-pb2-grpc

Affected versions: (1) 16.0.0

1. Version numbers are usually added automatically. In most cases, the packages listed here were created only to distribute malicious code.

Campaign data

Campaign information may not always be 100% accurate for every related package.

Campaign description

During import, package decrypts and runs a malicious executable. The executable is hidden in an encoded and xored form in the JSON resource file.

This is a follow up of the campaign 2026-03-fastapi-middleware-cors

See more details on the campaign page.

dependency-confusion

An attempt to exploit dependency confusion

malware

Package contains or installs known malware.

obfuscation

Code uses obfuscation techniques to hide its true purpose.

typosquatting

The package name is an typosquatting variant of a popular package.

Look up in other services

• Check metadata in pypi-data project (1)
• Search for the package in deps.dev(2)
• Search for the package in socket.dev (3)
• Search for the package in secure.software (4)
• Search for the package in Snyk Advisor (5)

1. May not be available. See more in pypi-json-data repository.
2. Open Source Insights project, provided by Google.
3. Service from Socket.dev, a cybersecurity company.
4. Spectra Assure Community, a service from ReversingLabs, a cybersecurity company.
5. Service from Snyk, a cybersecurity company.