The correct answer is process memory analysis and PowerShell script block logging. Process memory analysis is effective because fileless malware operates entirely in RAM, never touching the disk, so examining running processes for injected code, suspicious memory regions, or anomalous API calls directly reveals the malicious payload. PowerShell script block logging captures the full text of every PowerShell command executed, including obfuscated or encoded scripts that fileless malware commonly uses to load payloads into memory, making it a powerful host-based detection technique. On the Cisco CyberOps Associate 200-201 exam, this question tests your understanding of how fileless attacks bypass traditional signature-based antivirus, which relies on disk writes. A common trap is selecting registry analysis or file hash matching, but remember: fileless malware leaves no file to hash. Memory tip: think “no disk, no hash—watch memory and script blocks.”
200-201 Host-Based Analysis Practice Question
This 200-201 practice question tests your understanding of host-based analysis. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which TWO host-based analysis techniques are most effective for detecting fileless malware?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Process memory analysis to detect injected code
Process memory analysis (A) is effective because fileless malware resides in memory without writing to disk, so examining running processes for injected code, suspicious memory regions, or anomalous API calls can directly detect the malicious payload. PowerShell script block logging (E) captures the full text of PowerShell commands executed, including obfuscated or encoded scripts that fileless malware often uses to load payloads directly into memory, making it a powerful host-based detection technique.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Process memory analysis to detect injected code
Why this is correct
Fileless malware often injects code into memory.
Related concept
Read the scenario before looking for a memorised answer.
✗
Network traffic analysis
Why it's wrong here
Network analysis is not host-based; it's network-based.
✗
Signature-based file scanning
Why it's wrong here
Fileless malware has no file to scan.
✗
Registry analysis for persistence
Why it's wrong here
Fileless may still use registry, but not primary detection technique.
✓
PowerShell script block logging
Why this is correct
Many fileless attacks use PowerShell; enabling logging captures commands.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between host-based and network-based analysis techniques, and the trap here is that candidates may select network traffic analysis (B) because it can detect fileless malware's network activity, but the question specifically asks for host-based techniques, making B incorrect.
Detailed technical explanation
How to think about this question
Fileless malware often leverages living-off-the-land binaries (LOLBins) like PowerShell, WMI, or mshta to execute code in memory. Process memory analysis can reveal anomalies such as RWX memory pages, hollowed processes, or reflective DLL injection, while PowerShell script block logging (enabled via Group Policy or module logging) records the deobfuscated script content even if the original command was heavily encoded, allowing analysts to reconstruct the attack chain.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Host-Based Analysis — This question tests Host-Based Analysis — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Process memory analysis to detect injected code — Process memory analysis (A) is effective because fileless malware resides in memory without writing to disk, so examining running processes for injected code, suspicious memory regions, or anomalous API calls can directly detect the malicious payload. PowerShell script block logging (E) captures the full text of PowerShell commands executed, including obfuscated or encoded scripts that fileless malware often uses to load payloads directly into memory, making it a powerful host-based detection technique.
What should I do if I get this 200-201 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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