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What is a Host Intrusion Detection System (HIDS)?
software that runs on an endpoint computer and can detect attacks
Host intrusion prevention systems (HIPS)
An intrusion prevention system detects and stops harmful activities. A host intrusion prevention system (HIPS) watches over your device, blocks threats, and lets you know if action is needed.
A HIDS uses agents installed on the device to monitor its activity closely. It typically tracks:
System Calls: Requests made by programs to the operating system. HIDS checks these requests to spot suspicious behavior.
File Access: Ensures that files are accessed for legitimate reasons and not for malicious purposes.
Input/Output: Watches all data exchanges. For example, if a device that doesn’t use instant messaging suddenly tries to connect via IM, HIDS will flag this as unusual.