The uprobe PyPI package versions 0.1.3 and 0.1.4 were compromised to include malicious code that executes on every Python interpreter startup. This code downloads and runs an obfuscated JavaScript infostealer using the Bun runtime, collecting sensitive data such as API keys, credentials, cryptocurrency assets, and password manager data. The malware attempts persistence and propagation by publishing infected packages using stolen credentials and may wipe user data if invalid GitHub tokens are detected. The malicious behavior is hidden via obfuscation and uses a sentinel file to evade detection. The package's advertised functionality does not require a JavaScript runtime, indicating the malicious nature of the code.