MAL-2026-14488

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MAL-2026-14488

Summary: Malicious code in python-walletlibr-v (PyPI)

Details: Source: amazon-inspector (6783cffec9c8f9377babacd1cb4490a278bace564b34861bf49b35258be7220c) python-walletlibr-v is a wallet-lookalike PyPI package that ships no wallet functionality — only a stub hello() that prints 'Hello from my custom library!' and placeholder author metadata (__author__ = 'Your Name'). Its setup.py registers a CustomInstall command that, on Windows at pip install time, writes a.bat file into %TEMP%, spawns a new cmd.exe console to execute it via subprocess.Popen(['cmd.exe','/k', bat_path], CREATE_NEW_CONSOLE), and calls os.system('calc'). Arbitrary local command execution fires automatically during pip install on Windows hosts, unrelated to any advertised functionality.

References: https://pypi.org/project/python-walletlibr-v/0.7.9/