CAS-004 Security Operations Practice Question
A threat hunter is looking for signs of a ransomware attack that encrypts files and drops a ransom note. The hunter decides to search for processes that have modified many files in a short period. Which threat hunting methodology is being used?
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
✓
Hypothesis-driven hunting
Hypothesis-driven hunting starts with a hypothesis about a threat and then searches for evidence. The hunter is hypothesizing about ransomware behavior.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
TTP-driven hunting
Why it's wrong here
TTP-driven focuses on adversary techniques, but the approach here is hypothesis-based.
- ✓
Hypothesis-driven hunting
Why this is correct
The hunter forms a hypothesis about ransomware behavior and searches for it.
- ✗
Machine learning-driven hunting
Why it's wrong here
This uses algorithms to detect anomalies, not a specific hypothesis.
- ✗
IoC-driven hunting
Why it's wrong here
IoC-driven uses known indicators like hashes or IPs.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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