Malicious PyPI Package 'soopsocks' Infects 2,653 Systems in Supply-Chain Breach
In October 2025, security researchers discovered a malicious Python package named "soopsocks" on the official Python Package Index (PyPI) repository, which was designed to masquerade as a legitimate SOCKS5 proxy tool while covertly delivering backdoor functionalities to affected Windows machines. Attackers used this supply-chain vector to reach unsuspecting developers and organizations, resulting in 2,653 downloads before the package was taken down by PyPI administrators. The malware enabled attackers to deploy additional payloads, potentially leading to data exfiltration and further system compromise across multiple organizations. This incident exemplifies the persistent risk of open-source ecosystem attacks, as threat actors increasingly target software supply chains and code repositories. It highlights the urgent need for organizations to harden software development pipelines and monitor third-party dependencies for tampering or malicious behavior.
Kill Chain