CHFI Mobile and Malware Forensics Practice Question
This CHFI practice question tests your understanding of mobile and malware forensics. 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.
During dynamic analysis of a malware sample, an analyst uses Process Monitor to monitor file system activity. The malware creates a file named 'C:\Users\Admin\AppData\Roaming\svchost.exe'. What does this likely indicate?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The malware is attempting to achieve persistence by placing a copy in a user directory
The creation of a file named 'svchost.exe' in the user's AppData\Roaming directory is a classic persistence technique. By placing a copy of itself with the name of a legitimate Windows system process (svchost.exe) in a user-writable location, the malware aims to execute automatically at startup (e.g., via a registry Run key or scheduled task) while evading suspicion. This is not a legitimate Windows update, as system files reside in C:\Windows\System32, not in a user profile directory.
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.
✗
The malware is a legitimate Windows update
Why it's wrong here
Windows updates do not place svchost.exe in user's AppData.
✗
The malware is extracting an archive
Why it's wrong here
No evidence of extraction; a single executable is created.
✗
The malware is cleaning up temporary files
Why it's wrong here
Creation of a file indicates installation, not cleanup.
✓
The malware is attempting to achieve persistence by placing a copy in a user directory
Why this is correct
Creating a file with a system process name in AppData is a common persistence technique.
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 misconception that any file named 'svchost.exe' is legitimate, but the key indicator is the path — a system process should never run from a user profile directory like AppData\Roaming.
Detailed technical explanation
How to think about this question
Under the hood, svchost.exe is a generic host process for Windows services; malware often mimics this name to blend in with legitimate processes. The AppData\Roaming folder is commonly used for persistence because it is user-writable without admin privileges and is synchronized across domain-joined machines via folder redirection. In real-world scenarios, such as Emotet or TrickBot infections, the malware drops a copy of itself in this location and adds a Run key to HKCU\Software\Microsoft\Windows\CurrentVersion\Run to ensure execution on user logon.
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 practitioner preparing for the CHFI exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CHFI question in full detail.
Mobile and Malware Forensics — This question tests Mobile and Malware Forensics — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The malware is attempting to achieve persistence by placing a copy in a user directory — The creation of a file named 'svchost.exe' in the user's AppData\Roaming directory is a classic persistence technique. By placing a copy of itself with the name of a legitimate Windows system process (svchost.exe) in a user-writable location, the malware aims to execute automatically at startup (e.g., via a registry Run key or scheduled task) while evading suspicion. This is not a legitimate Windows update, as system files reside in C:\Windows\System32, not in a user profile directory.
What should I do if I get this CHFI 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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