Threat Definitions

A type of malware that prevents or limits users from accessing their system, either by locking the system's screen or by locking the users' files unless a ransom is paid.

Ransomware as a service (RaaS) is a business model that involves selling or renting ransomware to buyers, called affiliates.

Remote access programs and tools (sometimes referred to as RATs) allow access and manipulation of systems remotely from another location.

Based on the Trend Micro Smart Protection Network data, reported infections is the number of systems infected by a particular malware.

Many recent malware threats use social engineering to disguise themselves as antivirus applications. Some of these are scams that try to rip off users directly, while others either have malicious routines or install other malware.

A rootkit is a program (or collection of programs) that installs and executes code on a system without end user consent or knowledge. It uses stealth to maintain a persistent and undetectable presence on the machine.