200-201 Security Monitoring Practice Question
During an incident response, an analyst extracts a file from network traffic using Zeek's file analysis feature. The file has a SHA-256 hash that matches a known malware indicator. Which type of IoC is this?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
File-based IoC
A file hash is a file-based IoC that uniquely identifies a malicious file.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Behavioral IoC
Why it's wrong here
Behavioral IoCs describe actions, not static attributes.
- ✗
Network-based IoC
Why it's wrong here
Network IoCs include IPs, domains, URLs.
- ✗
Host-based IoC
Why it's wrong here
Host-based IoCs include registry keys, mutexes.
- ✓
File-based IoC
Why this is correct
File hashes are file-based indicators.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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