Host-based IDS (HIDS) is an Intrusion Detection System that runs on the system to be monitored. HIDS monitors only the data that it is directed to, or originates from the system on which HIDS is installed. Besides monitoring network traffic for detecting attacks, it can also monitor other parameters of the system such as running processes, file system access and integrity, and user logins for identifying malicious activities.

Which of the following tools are examples of HIDS?

Each correct answer represents a complete solution. (Choose all that apply.)