The answer is Hashcat, the tool specifically designed to brute-force encrypted iTunes backup passwords with GPU acceleration. Hashcat is correct because it leverages the parallel processing power of a graphics card to perform high-speed brute-force attacks directly on the password hash extracted from the ‘manifest.plist’ file, which contains the backup version and encryption state. On the Computer Hacking Forensic Investigator CHFI exam, this question tests your knowledge of iOS forensic acquisition and password recovery tools, often appearing as a scenario where an analyst must recover access to an encrypted backup. A common trap is confusing Hashcat with John the Ripper, but remember that Hashcat is the go-to for GPU-accelerated cracking of iTunes backups. Memory tip: think “Hashcat + GPU = iTunes brute-force speed.”
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.
In an iOS forensic examination, an analyst extracts an encrypted iTunes backup. The backup contains a file named 'manifest.plist' which lists the backup version and encryption state. Which tool is specifically designed to brute-force the backup password using GPU acceleration?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Hashcat
Hashcat is the correct tool because it is a password recovery utility that leverages GPU acceleration to perform high-speed brute-force attacks on encrypted iTunes backup passwords. It can directly process the password hash extracted from the 'manifest.plist' file, which contains the backup version and encryption state, allowing efficient cracking of the backup password.
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.
✓
Hashcat
Why this is correct
Hashcat can crack iTunes backup passwords using GPU acceleration with mode 14700 for iTunes backups.
Related concept
Read the scenario before looking for a memorised answer.
✗
Oxygen Forensic Detective
Why it's wrong here
Oxygen Forensic Detective is a forensic analysis suite but does not specialize in GPU-based password cracking.
✗
Cellebrite UFED
Why it's wrong here
Cellebrite UFED can extract data and sometimes remove passcodes but is not primarily a GPU-based password cracker.
✗
GrayKey
Why it's wrong here
GrayKey is a hardware tool for physical extraction of iOS devices, not for password cracking.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between tools used for physical device extraction (like Cellebrite UFED or GrayKey) versus those used for password cracking (like Hashcat), and the trap here is that candidates may confuse GrayKey's passcode bypass capability with backup password cracking, even though GrayKey does not use GPU acceleration for brute-forcing encrypted backups.
Detailed technical explanation
How to think about this question
Hashcat uses OpenCL or CUDA to offload password hashing computations to the GPU, enabling parallel processing of millions of password attempts per second. For iOS backups, the password hash is derived from the PBKDF2 function with a 10,000 iteration count and a 256-bit key, stored in the 'Manifest.plist' file; Hashcat's mode 14800 targets this specific hash format. In real-world scenarios, a weak backup password (e.g., less than 8 characters) can be cracked in minutes, while strong passwords may require days or weeks depending on GPU power.
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.
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: Hashcat — Hashcat is the correct tool because it is a password recovery utility that leverages GPU acceleration to perform high-speed brute-force attacks on encrypted iTunes backup passwords. It can directly process the password hash extracted from the 'manifest.plist' file, which contains the backup version and encryption state, allowing efficient cracking of the backup password.
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.
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 →
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.
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.