NullRAT is a Python-based Remote Access Trojan (RAT) utilizing Discord for command-and-control, designed for high stealth, persistence, and data exfiltration, often distributed through malicious PyPI packages. It poses a significant threat to Windows users by facilitating easy access to system manipulation, screen capturing, and credential theft. A detailed technical analysis of this threat is available from Cyfirma . PyPI Package Targets Windows With NullRAT Info-Stealer