Ratware refers to a category of software designed for the purpose of remote access and control, often associated with malicious intent. It typically includes tools that allow attackers to gain unauthorized access to a victim's computer or network, enabling them to steal data, monitor activities, or deploy further malware. The term is derived from "Remote Access Trojan" (RAT), which highlights its functionality in facilitating remote exploitation. Such software poses significant security risks and is often used in cybercriminal activities.