CHFI Study Guide 2026

Everything you need to pass the CHFI exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.

📋 CHFI Exam Format at a Glance

150

Questions

240 min

Time Limit

70%

Passing Score

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📚 CHFI Topics to Study (61)

Anti-Forensics Techniques · 7 cards Anti-Forensics Techniques · 7 cards Anti-Forensics Techniques · 7 cards Data Acquisition and Duplication · 7 cards Data Acquisition and Duplication · 7 cards Data Acquisition and Duplication · 7 cards Data Acquisition and Duplication · 7 cards Forensic Investigation Process · 7 cards Forensic Investigation Process · 7 cards Forensic Investigation Process · 7 cards Forensic Investigation Process · 7 cards General · 7 cards General · 7 cards General · 7 cards General · 7 cards General MCQ · 7 cards General MCQ · 7 cards General MCQ · 7 cards General MCQ · 7 cards Hard Disk and File Systems · 7 cards Hard Disk and File Systems · 7 cards Hard Disk and File Systems · 7 cards Hard Disk and File Systems · 7 cards Investigating Web Attacks · 7 cards Investigating Web Attacks · 7 cards Investigating Web Attacks · 7 cards Investigating Web Attacks · 7 cards Malware Forensics · 7 cards Malware Forensics · 7 cards Malware Forensics · 7 cards

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✍️ Sample CHFI Questions & Answers

1. A malware analyst is examining a sample that encrypts its C2 communications using a custom XOR cipher with a single-byte key. What analysis technique would MOST efficiently recover the key?

✓ Frequency analysis of the ciphertext

Single-byte XOR encryption is vulnerable to frequency analysis because the most common byte in the plaintext (often 0x00 or 0x20 in protocols) reveals the key when XORed with the most frequent ciphertext byte.

2. In the context of email forensics, which header field reveals the originating IP address of the sender's mail client?

✓ Received:

The 'Received:' header chain in an email message traces the path of the message and typically includes the originating IP address of the sending client.

3. In NTFS, which metadata file stores the location of all other metadata files and is always located at the beginning of the volume?

✓ $MFT

The $MFT (Master File Table) is the first file in an NTFS volume and contains records for every file and directory on the volume.

4. Which analysis technique examines the timing intervals between network packets to identify covert communication channels even when content is encrypted?

✓ Traffic timing analysis / inter-arrival time analysis

Traffic timing analysis examines inter-packet arrival times to detect patterns that may indicate covert channels where timing itself encodes information, bypassing content-level inspection.

5. What is the standard hashing algorithm recommended by NIST for generating forensic hash values to verify evidence integrity?

✓ SHA-256

NIST recommends SHA-256 for generating forensic hash values as it provides stronger collision resistance than MD5 or SHA-1.

6. What is the forensic significance of the `Referer` HTTP header found in web server logs?

✓ It shows the URL from which the request originated, helping trace attack navigation paths

The Referer header shows what page or resource the request came from, helping investigators trace how an attacker navigated through an application.

🎯 Free CHFI Practice Tests

Network Forensics · 7 questions Anti-Forensics Techniques · 7 questions Malware Forensics · 7 questions Network Forensics · 7 questions Cloud Forensics · 7 questions Anti-Forensics Techniques · 7 questions General MCQ · 7 questions Anti-Forensics Techniques · 7 questions General · 7 questions Data Acquisition and Duplication · 7 questions

📖 CHFI Guides & Articles

Your CHFI Study Path

1. Learn with Flashcards → 2. Drill Practice Tests → 3. Take the Full Exam Simulation

🃏 CHFI Flashcards (412)🏆 CHFI Exam Simulation

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