CAS-004 Security Operations Practice Question
A security team is evaluating endpoint detection and response (EDR) solutions. They want a solution that can detect fileless malware and malicious PowerShell scripts. Which TWO capabilities should the team prioritize? (Choose TWO.)
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
✓
Behavioral monitoring of script execution (e.g., PowerShell)
Fileless malware often lives in memory and uses scripting. Memory scanning and script monitoring are key. Signature-based detection may miss fileless attacks. Firewall rules are unrelated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Signature-based detection of known malware
Why it's wrong here
Fileless malware often has no file signature.
- ✗
Network traffic analysis for C2 communication
Why it's wrong here
While important for detection, it is not specific to fileless or PowerShell threats.
- ✓
Behavioral monitoring of script execution (e.g., PowerShell)
Why this is correct
Monitoring script behavior can detect malicious activities.
- ✗
Automated firewall rule creation
Why it's wrong here
This is not directly relevant to detecting fileless attacks.
- ✓
Memory scanning capabilities
Why this is correct
Fileless malware executes in memory; memory scanning can detect it.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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