New Java-Based QuimaRAT MaaS Built to Run on Windows, Linux, and macOS

A new Java-based remote access trojan (RAT) called QuimaRAT, offered as a malware-as-a-service (MaaS), has been released by a threat actor. The tool is cross-platform, supporting Windows, Linux, and macOS, and is advertised as a modular system with a builder for various output formats. The threat actor emphasizes stealth and evasion techniques, including bypassing SmartScreen protections and utilizing native components to interact directly with operating system APIs. The tool is designed to establish persistence and is intended for professional security research and penetration testing, with a strong warning against malicious use.