Final answer:
Three valid IOC rules are Hash, IP, and File Name.
Step-by-step explanation:
Three valid IOC (Indicators of Compromise) rules are:
- Hash: A cryptographic hash function that computes a fixed-size hash value for a given input. It can be used to identify if a file has been altered or is known to be malicious.
- IP: The Internet Protocol address, which uniquely identifies each device on a network. It can be used to track suspicious network activity or connections.
- File Name: The specific name or path of a file, which can indicate if it is associated with known malware or malicious activity.