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.
A security analyst runs the command `regshot64.exe compare` after executing malware. Regshot reports that the following registry key was created: `HKCU\Software\Microsoft\Windows\CurrentVersion\Run\SecureUpdate`. Which conclusion is MOST likely?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
The malware encrypted the user's documents
Why wrong: No evidence of encryption.
The malware installed a persistence mechanism
Run key = persistence.
The malware deleted a system file
Why wrong: Regshot compares registry, not files.
The malware modified a network configuration
Why wrong: No network key changes.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
The malware installed a persistence mechanism
The registry key `HKCU\Software\Microsoft\Windows\CurrentVersion\Run\SecureUpdate` is a standard Windows Run key, which automatically executes the specified program at user logon. By creating this key, the malware ensures it runs every time the user logs in, establishing persistence. This is a classic persistence mechanism, not an action related to encryption, file deletion, or network changes.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
The malware encrypted the user's documents
Why it's wrong here
No evidence of encryption.
The malware installed a persistence mechanism
Why this is correct
Run key = persistence.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
The malware deleted a system file
Why it's wrong here
Regshot compares registry, not files.
The malware modified a network configuration
Why it's wrong here
No network key changes.
Common exam traps
Cisco often tests the distinction between persistence mechanisms (like Run keys) and other malware behaviors (like encryption or network changes), trapping candidates who assume any registry change indicates data destruction or system modification rather than survival.
Detailed technical explanation
The Run key under `HKCU\Software\Microsoft\Windows\CurrentVersion\Run` is processed by `explorer.exe` during user logon; each value's data is a command line executed via `ShellExecuteEx`. Malware often uses misleading names like 'SecureUpdate' to evade suspicion. In real-world forensics, analysts check this key alongside `HKLM\Software\Microsoft\Windows\CurrentVersion\Run` and scheduled tasks to identify persistence, as many families (e.g., TrickBot, Emotet) use this exact technique.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Mobile and Malware Forensics — study guide chapter
Learn the concepts, then practise the questions
Mobile and Malware Forensics practice questions
Targeted practice on this topic area only
All CHFI questions
1,000 questions across all exam domains
Computer Hacking Forensic Investigator CHFI study guide
Full concept coverage aligned to exam objectives
CHFI practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise CHFI questions linked to Computer Forensics Investigation Process.
Practise CHFI questions linked to Computer Forensics Fundamentals and Process.
Practise CHFI questions linked to Storage Forensics and File System Analysis.
Practise CHFI questions linked to Incident Response and First Responder Skills.
Practise CHFI questions linked to Computer Forensics Lab.
Practise CHFI questions linked to Evidence Acquisition and Duplication.
Practise CHFI questions linked to OS and Network Forensics.
Practise CHFI questions linked to OS and File System Forensics.
Practise CHFI questions linked to Application, Email and Cloud Forensics.
Practise CHFI questions linked to Mobile and Malware Forensics.
Practise CHFI questions linked to Network and Cloud Forensics.
Practise CHFI questions linked to Database and Application Forensics.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Mobile and Malware Forensics — This question tests Mobile and Malware Forensics — Read the scenario before looking for a memorised answer..
The correct answer is: The malware installed a persistence mechanism — The registry key `HKCU\Software\Microsoft\Windows\CurrentVersion\Run\SecureUpdate` is a standard Windows Run key, which automatically executes the specified program at user logon. By creating this key, the malware ensures it runs every time the user logs in, establishing persistence. This is a classic persistence mechanism, not an action related to encryption, file deletion, or network changes.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jun 24, 2026
This CHFI practice question is part of Courseiva's free EC-Council certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CHFI exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.