GIAC GSEC Practice Test - Prep & Study Guide for GIAC Security Essentials Certification

The presence of new files in the temp directory that record user inputs is typically indicative of a keylogger, which is a type of malware. While keyloggers can be associated with various broader categories of malware, they are often linked to Trojan horses.

Trojan horses are designed to trick the user into installing them by appearing legitimate or benign while carrying out malicious activities. They can create hidden files to store sensitive information such as keystrokes, which would be recorded in the temp directory as part of their functionality. This behavior is typical because a keylogger operates silently in the background, capturing user input without their knowledge.

In contrast, worms and viruses usually spread through self-replication or by infecting other files, rather than specifically recording user interaction. Adware focuses on delivering advertisements and may track user behavior, but its primary function is not logging keystrokes. Thus, the association of user input recording with files in the temp directory clearly aligns more with the characteristics of a Trojan horse.