Quick Answer
The answer is Regshot, the correct tool for monitoring registry and file system changes during malware analysis. Regshot is specifically designed to take snapshots of the registry hives and file system before and after executing a suspicious binary, then compare them to generate a detailed report of added, modified, or deleted keys and files. This makes it ideal for quickly identifying persistence mechanisms, such as Run keys or scheduled tasks, and configuration changes introduced by malware. On the Computer Hacking Forensic Investigator CHFI exam, this question tests your knowledge of lightweight, open-source forensic utilities versus full-featured sandbox tools like Cuckoo or Process Monitor—a common trap is confusing Regshot with RegRipper, which analyzes existing hives rather than comparing before-and-after states. To remember, think of Regshot as a “before-and-after camera” for the registry and file system: it takes two shots and highlights the differences, making it the go-to snapshot tool for rapid malware triage.
This CHFI practice question tests your understanding of mobile and malware forensics. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 malware analyst is using a tool to monitor registry and file system changes during the execution of a suspicious binary. Which tool is specifically designed to take snapshots of the registry and file system before and after execution to identify changes?
Regshot
Regshot creates before/after snapshots of the registry and file system.
Cuckoo Sandbox
Why wrong: Cuckoo is a full automated dynamic analysis system, not a snapshot comparison tool.
Process Explorer
Why wrong: Process Explorer shows running processes and handles, not snapshots.
Process Monitor
Why wrong: Process Monitor logs real-time registry and file system activity but does not take snapshots.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Regshot
Regshot is a lightweight open-source tool designed specifically to compare registry hives and file system snapshots taken before and after executing a binary. It generates a detailed report of added, modified, or deleted keys and files, making it ideal for malware analysis to quickly identify persistence mechanisms or configuration 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.
Regshot
Why this is correct
Regshot creates before/after snapshots of the registry and file system.
Related concept
Read the scenario before looking for a memorised answer.
Cuckoo Sandbox
Why it's wrong here
Cuckoo is a full automated dynamic analysis system, not a snapshot comparison tool.
Process Explorer
Why it's wrong here
Process Explorer shows running processes and handles, not snapshots.
Process Monitor
Why it's wrong here
Process Monitor logs real-time registry and file system activity but does not take snapshots.
Common exam traps
Cisco often tests the distinction between snapshot-based comparison tools (Regshot) and real-time monitoring tools (Process Monitor), leading candidates to confuse Process Monitor's live logging capability with the before-and-after snapshot functionality required by the question.
Trap categories for this question
Command / output trap
Process Explorer shows running processes and handles, not snapshots.
Detailed technical explanation
Regshot works by using the Windows Registry API (RegQueryInfoKey, RegEnumKeyEx) to enumerate the entire registry and the FindFirstFile/FindNextFile APIs to traverse the file system, storing hashes and metadata in a baseline snapshot. After execution, it performs a second enumeration and uses a diff algorithm to compare the two snapshots, outputting a human-readable report in plain text or HTML. In real-world malware analysis, Regshot is often used alongside a debugger or sandbox to quickly identify registry run keys or startup folder additions that indicate persistence.
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
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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: Regshot — Regshot is a lightweight open-source tool designed specifically to compare registry hives and file system snapshots taken before and after executing a binary. It generates a detailed report of added, modified, or deleted keys and files, making it ideal for malware analysis to quickly identify persistence mechanisms or configuration changes.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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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.
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