1What is the primary goal of anti-forensics techniques?
Understand anti-forensics techniques
Easy
A.To create automatic file backups
B.To improve system performance
C.To speed up disk formatting
D.To hinder, mislead, or prevent forensic investigation
Correct Answer: To hinder, mislead, or prevent forensic investigation
Explanation:
Anti-forensics refers to methods used to obstruct, complicate, or defeat the forensic analysis process, such as hiding, destroying, or altering evidence.
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2When a file is deleted in Windows and moved to the Recycle Bin, what generally happens to the actual file data?
Discuss data deletion and recycle bin forensics
Easy
A.The data is instantly and permanently erased
B.The data remains on disk until overwritten
C.The data is uploaded to the cloud
D.The data is encrypted automatically
Correct Answer: The data remains on disk until overwritten
Explanation:
Deletion typically only removes the file's reference; the actual data stays on disk until it is overwritten, allowing potential recovery.
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3In modern Windows systems, which hidden folder stores Recycle Bin contents?
Discuss data deletion and recycle bin forensics
Easy
A.Temp
B.$Recycle.Bin
C.RECYCLED
D.System Volume Information
Correct Answer: $Recycle.Bin
Explanation:
Windows Vista and later store deleted items in the hidden $Recycle.Bin folder, with a separate subfolder per user SID.
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4File carving primarily recovers files based on what?
Illustrate file carving techniques and ways to recover evidence from deleted
Easy
A.Registry keys
B.User account permissions
C.File system directory entries
D.File signatures (headers and footers)
Correct Answer: File signatures (headers and footers)
Explanation:
File carving reconstructs files by identifying known header and footer byte patterns, without relying on file system metadata.
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5File carving is especially useful when which of the following is missing or damaged?
Illustrate file carving techniques and ways to recover evidence from deleted
Easy
A.The network connection
B.The computer's RAM
C.The physical hard drive
D.File system metadata
Correct Answer: File system metadata
Explanation:
Carving works independently of file system structures, making it valuable when metadata such as the MFT or FAT is corrupted or absent.
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6Which attack tries every possible combination of characters to guess a password?
Correct Answer: Trying words from a predefined list
Explanation:
A dictionary attack uses a curated list of likely words and common passwords, which is faster than pure brute force against weak passwords.
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8What is steganography?
Detect steganography
Easy
A.Deleting files permanently
B.Compressing files to save space
C.Encrypting data with a strong key
D.Hiding data inside other files or media
Correct Answer: Hiding data inside other files or media
Explanation:
Steganography conceals the existence of a message by embedding it within another file, such as an image, audio, or video file.
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9How does steganography differ from encryption?
Detect steganography
Easy
A.It only works on text files
B.It hides the existence of data rather than just scrambling it
C.It always uses a longer key
D.It requires an internet connection
Correct Answer: It hides the existence of data rather than just scrambling it
Explanation:
Encryption makes data unreadable but visible, while steganography conceals that any secret data exists at all.
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10In NTFS, which feature can be misused to hide data attached to a normal file?
Hidden data in file system structures
Easy
A.Master Boot Record
B.Page file
C.Boot sector
D.Alternate Data Streams (ADS)
Correct Answer: Alternate Data Streams (ADS)
Explanation:
NTFS Alternate Data Streams allow additional hidden data to be attached to a file without changing its visible size or content.
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11Trail obfuscation in anti-forensics aims to:
Trail obfuscation
Easy
A.Back up log files securely
B.Increase disk read speed
C.Encrypt network traffic for privacy
D.Confuse or mislead investigators about the true activity
Correct Answer: Confuse or mislead investigators about the true activity
Explanation:
Trail obfuscation involves altering, forging, or muddling evidence such as logs and timestamps to mislead an investigation.
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12What is the purpose of artifact wiping?
Understand techniques of artifact wiping
Easy
A.To compress unused files
B.To permanently destroy data so it cannot be recovered
C.To create hidden copies of files
D.To speed up the boot process
Correct Answer: To permanently destroy data so it cannot be recovered
Explanation:
Artifact wiping uses secure deletion or disk-wiping tools to overwrite data, making recovery difficult or impossible.
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13Encryption protects data by:
Overwritten data/metadata detection and encryption
Easy
A.Hiding it in image files
B.Converting it into an unreadable form without a key
C.Renaming the file extension
D.Deleting it from the disk
Correct Answer: Converting it into an unreadable form without a key
Explanation:
Encryption transforms readable plaintext into ciphertext that can only be reversed with the correct decryption key.
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14What does a program packer typically do to an executable?
Detect program packers and footprint minimizing techniques
Easy
A.Adds detailed comments to the code
B.Signs it with a digital certificate
C.Increases its file size for backup
D.Compresses or encrypts it to hide its real contents
Correct Answer: Compresses or encrypts it to hide its real contents
Explanation:
Packers compress or obfuscate executables, often to evade detection and complicate reverse engineering by analysts.
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15Which of the following is a good countermeasure against anti-forensics?
Understand anti-forensics countermeasures
Easy
A.Deleting suspicious files immediately
B.Using validated tools and maintaining chain of custody
C.Sharing evidence copies publicly
D.Turning off all logging
Correct Answer: Using validated tools and maintaining chain of custody
Explanation:
Reliable forensic practices, validated tools, and a proper chain of custody help counter attempts to hide or destroy evidence.
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16Which of the following is an example of volatile data?
Collect volatile and non-volatile information
Easy
A.System registry hive files
B.Contents of RAM
C.Files on a hard disk
D.Data on a DVD
Correct Answer: Contents of RAM
Explanation:
Volatile data such as RAM contents is lost when power is removed, so it must be collected first during live acquisition.
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17The Windows Registry is best described as:
Perform Windows memory and registry analysis
Easy
A.A type of network protocol
B.A folder containing user documents
C.A hierarchical database of system and configuration settings
D.A tool for editing images
Correct Answer: A hierarchical database of system and configuration settings
Explanation:
The Registry stores configuration data for the OS, hardware, applications, and users, making it a rich source of forensic artifacts.
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18Which browser artifact stores small pieces of data used to track sessions and preferences?
Examine the cache, Cookie and history recorded in web browsers
Easy
A.Page file
B.Boot sector
C.Cookies
D.Firmware
Correct Answer: Cookies
Explanation:
Cookies are small data files stored by browsers to maintain sessions and user preferences, valuable in tracing user activity.
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19What forensic information do LNK files (shortcuts) commonly reveal?
Understand shellbags, LNK files and jump lists
Easy
A.Deleted registry hives
B.Paths and timestamps of recently accessed files
C.The system's BIOS password
D.Encrypted network keys
Correct Answer: Paths and timestamps of recently accessed files
Explanation:
LNK shortcut files can reveal the target file path, access times, and volume details, showing files a user opened.
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20Windows Event Logs primarily record which type of information?
Understand text-based logs and Windows event logs
Easy
A.Encrypted user passwords in plaintext
B.Only deleted file contents
C.Website images
D.System, security, and application events
Correct Answer: System, security, and application events
Explanation:
Windows Event Logs capture system, security, and application events such as logons and errors, aiding timeline reconstruction.
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21An investigator finds that a suspect ran a tool that overwrites file slack space and unallocated clusters with random data before shutdown. Which category of anti-forensics does this technique BEST represent?
Understand anti-forensics techniques
Medium
A.Data hiding via steganography
B.Trail obfuscation
C.Artifact wiping
D.Encryption key escrow
Correct Answer: Artifact wiping
Explanation:
Overwriting slack space and unallocated clusters destroys residual data so it cannot be recovered, which is the defining goal of artifact wiping.
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22On a Windows system, a user deletes a file to the Recycle Bin. Which file within the $Recycle.Bin folder stores the original path and deletion timestamp of that file?
Discuss data deletion and recycle bin forensics
Medium
A.An $R file
B.An $I file
C.The $MFT file
D.The INFO2 file
Correct Answer: An $I file
Explanation:
In Vista and later, $I files hold metadata (original path, size, deletion time) while $R files hold the actual recovered content.
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23An analyst recovers a JPEG from unallocated space by scanning for the byte sequence FF D8 FF at the start and FF D9 at the end. This recovery method is known as:
Illustrate file carving techniques and ways to recover evidence from deleted
Medium
A.Header/footer file carving
B.Metadata reconstruction
C.Slack space analysis
D.Journal replay
Correct Answer: Header/footer file carving
Explanation:
Carving based on known start (magic number) and end signatures without relying on file system metadata is header/footer carving.
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24An investigator uses a precomputed table of hash values mapped to their plaintext passwords to reverse Windows LM hashes quickly. Which technique is being used?
Explore password cracking/bypassing techniques
Medium
A.Dictionary attack
B.Rainbow table attack
C.Brute-force attack
D.Salted hash lookup
Correct Answer: Rainbow table attack
Explanation:
Rainbow tables trade storage for speed by precomputing hash-to-plaintext chains; LM hashes are unsalted, making them especially vulnerable.
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25During analysis, two visually identical images have significantly different file sizes and one shows abnormal statistical distribution in its least significant bits. What does this MOST likely indicate?
Detect steganography
Medium
A.File system corruption
B.LSB steganography hiding data
C.Metadata stripping
D.JPEG compression artifacts
Correct Answer: LSB steganography hiding data
Explanation:
Hiding data in least significant bits alters bit-level statistics and can inflate size; steganalysis detects these anomalies.
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26A suspect stores hidden data in an NTFS file such that it is invisible in directory listings and does not change the file's apparent size. Which NTFS feature was MOST likely abused?
Hidden data in file system structures
Medium
A.Alternate Data Streams (ADS)
B.Volume shadow copies
C.The $Bitmap file
D.Sparse file allocation
Correct Answer: Alternate Data Streams (ADS)
Explanation:
ADS lets additional streams attach to a file without appearing in normal listings or altering the primary stream's reported size.
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27An attacker modifies log timestamps and spoofs source IP addresses to mislead investigators about the origin and timing of an attack. This is an example of:
Trail obfuscation
Medium
A.Trail obfuscation
B.Artifact wiping
C.Data encryption
D.File carving
Correct Answer: Trail obfuscation
Explanation:
Trail obfuscation aims to confuse or mislead investigators by falsifying logs, timestamps, and origins rather than destroying data.
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28Which statement BEST distinguishes disk wiping from simple file deletion on a magnetic hard drive?
Understand techniques of artifact wiping
Medium
A.Both physically destroy the platter surface
B.Wiping overwrites data with patterns while deletion only removes file pointers
C.Wiping removes file pointers while deletion overwrites data
D.Deletion overwrites data multiple times while wiping does not
Correct Answer: Wiping overwrites data with patterns while deletion only removes file pointers
Explanation:
Deletion typically only unlinks directory entries leaving data recoverable, whereas wiping overwrites the underlying sectors.
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29An investigator encounters a full-disk-encrypted volume and needs the plaintext. Which live-acquisition step gives the BEST chance of recovering the encryption key?
Overwritten data/metadata detection and encryption
Medium
A.Parsing the MFT offline
B.Analyzing the recycle bin
C.Capturing RAM while the system is powered on and unlocked
D.Imaging the disk after shutdown
Correct Answer: Capturing RAM while the system is powered on and unlocked
Explanation:
Encryption keys often reside in volatile memory while a volume is mounted; a live RAM capture can recover them before power-off.
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30A malware sample shows very high entropy, few readable strings, and imports only LoadLibrary and GetProcAddress. What does this MOST strongly suggest?
Detect program packers and footprint minimizing techniques
Medium
A.The executable is corrupted
B.The executable is digitally signed
C.The executable is a debug build
D.The executable is packed
Correct Answer: The executable is packed
Explanation:
High entropy, minimal strings, and reliance on dynamic API resolution are classic indicators of a packed/compressed binary.
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31Which practice is the MOST effective countermeasure against timestamp manipulation (timestomping) used by attackers?
Understand anti-forensics countermeasures
Medium
A.Relying solely on the file's last modified date
B.Using file size as the primary indicator
C.Correlating multiple timestamp sources like $MFT $STANDARD_INFORMATION and $FILE_NAME
D.Trusting the Recycle Bin metadata exclusively
Correct Answer: Correlating multiple timestamp sources like $MFT $STANDARD_INFORMATION and $FILE_NAME
Explanation:
Timestomping tools often alter FILE_NAME timestamps; comparing both reveals tampering.
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32Following the order of volatility during incident response, which of the following should be collected FIRST?
Collect volatile and non-volatile information
Medium
A.Data on the hard disk
B.Printed documents
C.Contents of RAM and running processes
D.Archived backup tapes
Correct Answer: Contents of RAM and running processes
Explanation:
The order of volatility dictates collecting the most transient data (CPU registers, RAM) before less volatile disk or archival data.
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33An analyst wants to determine which USB storage devices were connected to a Windows machine. Which registry key should be examined?
Perform Windows memory and registry analysis
Medium
The USBSTOR subkey records vendor, product, and serial information for USB mass-storage devices that have been attached.
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34In a memory forensics investigation using Volatility, which plugin would you use to list the processes that were running at the time of capture?
Perform Windows memory and registry analysis
Medium
A.hivelist
B.filescan
C.pslist
D.connscan
Correct Answer: pslist
Explanation:
pslist walks the doubly-linked list of active process structures (EPROCESS) to enumerate running processes.
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35An investigator needs to recover a user's Chrome browsing history including URLs and visit timestamps. Which artifact should be parsed?
Examine the cache, Cookie and history recorded in web browsers
Medium
A.The prefetch folder
B.The index.dat file
C.The hosts file
D.The SQLite History database
Correct Answer: The SQLite History database
Explanation:
Chrome stores URLs, titles, and visit counts/times in an SQLite database named History within the user's profile.
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36Which Windows artifact provides evidence that a program was executed, including a run count and last execution time, even if the executable was later deleted?
Examine Windows files and metadata
Medium
A.Thumbnail cache
B.Recycle Bin $I files
C.Prefetch files (.pf)
D.Hosts file
Correct Answer: Prefetch files (.pf)
Explanation:
Prefetch files in C:\Windows\Prefetch record executable names, run counts, and timestamps, proving prior execution.
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37An investigator wants to prove that a user browsed to a specific folder on a now-removed external drive using Windows Explorer. Which artifact is MOST appropriate?
Understand shellbags, LNK files and jump lists
Medium
A.Shellbags
B.Event logs
C.Pagefile
D.Prefetch files
Correct Answer: Shellbags
Explanation:
Shellbags store per-folder view settings in the registry, evidencing that a user navigated to specific folders including removable media.
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38A .lnk shortcut file is found referencing a document on a USB drive. Besides the target path, what additional forensic value do LNK files typically provide?
Understand shellbags, LNK files and jump lists
Medium
A.Browser cache contents
B.Encryption keys of the target file
C.The user's login password
D.Volume serial number and target timestamps
Correct Answer: Volume serial number and target timestamps
Explanation:
LNK files embed the target's MAC times, size, and the source volume's serial number, helping tie files to specific devices.
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39An analyst investigating failed and successful logons on a modern Windows system should focus on which event log and event IDs?
Understand text-based logs and Windows event logs
Medium
A.Setup log, Event ID 2
B.Application log, Event ID 1000
C.Security log, Event IDs 4624 and 4625
D.System log, Event IDs 6005 and 6006
Correct Answer: Security log, Event IDs 4624 and 4625
Explanation:
Event ID 4624 records successful logons and 4625 records failed logons, both stored in the Security event log.
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40On modern Windows systems, in which format and location are event logs primarily stored?
Understand text-based logs and Windows event logs
Medium
A.Plain text .log files in C:\Users
B.SQLite databases in the registry hive
C..evt files in C:\Windows\System32\config
D..evtx files in C:\Windows\System32\winevt\Logs
Correct Answer: .evtx files in C:\Windows\System32\winevt\Logs
Explanation:
Since Vista, Windows uses the XML-based .evtx format stored under winevt\Logs, replacing the older .evt format.
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41On a Windows 10 system, a user deletes a file via the Recycle Bin. In the $Recycle.Bin\<SID> folder, an investigator finds a $I file and a $R file. Which statement most accurately describes the forensic value of these two files?
Discuss data deletion and recycle bin forensics
Hard
A.Both $I and $R files store identical metadata for redundancy and neither contains file content.
B.The $I file stores original path, size, and deletion timestamp metadata, while the $R file contains the actual recovered file content.
C.The $R file stores the deletion metadata and the $I file stores the file content.
D.The $I file is an index of all deleted files while the $R file is a rolling log.
Correct Answer: The $I file stores original path, size, and deletion timestamp metadata, while the $R file contains the actual recovered file content.
Explanation:
In Vista and later, each deleted item is split into a $I###### file (metadata: original path, size, deletion time) and a $R###### file (the file's actual data). Recovering both allows full restoration with context.
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42An analyst attempts to carve a JPEG from unallocated space but the recovered file is truncated and corrupt beyond the first few KB. The file header (\xFF\xD8) and footer (\xFF\xD9) are both present. What is the MOST likely explanation?
Illustrate file carving techniques and ways to recover evidence from deleted
Hard
A.The carving tool used the wrong signature and truncated at a false boundary.
B.The JPEG footer signature was corrupted, preventing complete extraction.
C.The file was fragmented and non-contiguous, so header-footer carving captured intervening data from unrelated files.
D.The file was encrypted, so only the header decrypted correctly.
Correct Answer: The file was fragmented and non-contiguous, so header-footer carving captured intervening data from unrelated files.
Explanation:
Simple header/footer carving assumes contiguous storage. If the file is fragmented, the space between the located header and footer includes clusters belonging to other files, corrupting the reassembled image. Fragment-aware (SmartCarving) techniques are needed.
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43In NTFS, an attacker hides a malicious payload in an Alternate Data Stream (ADS) attached to a legitimate file. Which characteristic makes ADS-based hiding particularly evasive to casual inspection?
Hidden data in file system structures
Hard
A.The ADS is stored in a separate encrypted volume invisible to the OS.
B.The ADS content does not appear in the file's reported size or in standard directory listings.
C.The ADS overwrites the $MFT entry, making the host file unreadable.
D.ADS data is automatically deleted on reboot, leaving no persistent trace.
Correct Answer: The ADS content does not appear in the file's reported size or in standard directory listings.
Explanation:
NTFS Alternate Data Streams attach hidden data to a file's $DATA attribute without altering the visible file size or standard listing. Tools like dir /r, streams.exe, or forensic parsers are required to reveal them.
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44An investigator suspects LSB steganography in a set of bitmap images. Which statistical technique is MOST appropriate to detect the presence of hidden LSB-embedded data?
Detect steganography
Hard
A.Chi-square analysis of the distribution of adjacent color-value pairs (Pairs of Values).
B.Computing the MD5 hash and comparing against a known-clean baseline.
C.Measuring the file entropy of the entire container and flagging low values.
D.Extracting EXIF metadata and checking for missing camera fields.
Correct Answer: Chi-square analysis of the distribution of adjacent color-value pairs (Pairs of Values).
Explanation:
LSB embedding tends to equalize the frequencies of Pairs of Values (e.g., 2i and 2i+1). A chi-square test detects this artificial statistical uniformity. Hashing or plain entropy alone cannot reliably reveal LSB steganography.
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45A suspect used a disk-wiping utility that performs a single-pass overwrite with zeros on a modern SSD. Why might forensic recovery of some data still be possible despite the wipe?
Understand techniques of artifact wiping
Hard
A.Single-pass zero overwrites leave magnetic remanence recoverable via magnetic force microscopy.
B.Zero overwrites only affect metadata, never the actual file contents.
C.SSD wear-leveling and over-provisioning may retain original data in physical NAND blocks not exposed to the logical overwrite.
D.The wiping tool skips the file system journal, which contains full file copies.
Correct Answer: SSD wear-leveling and over-provisioning may retain original data in physical NAND blocks not exposed to the logical overwrite.
Explanation:
SSDs remap logical addresses across physical cells for wear-leveling and reserve over-provisioned space. A logical overwrite cannot guarantee erasure of all physical copies, so remnants may survive in unmapped NAND blocks.
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46An examiner extracts NTLM hashes from a Windows SAM. Rather than brute-forcing, they authenticate to a remote service by passing the hash directly. What is this attack called, and what does it exploit?
Explore password cracking/bypassing techniques
Hard
A.Pass-the-Hash, exploiting NTLM's use of the hash itself as the authentication credential.
C.Credential stuffing, exploiting reused plaintext passwords across services.
D.Golden Ticket, exploiting a forged Kerberos TGT signed with the KRBTGT key.
Correct Answer: Pass-the-Hash, exploiting NTLM's use of the hash itself as the authentication credential.
Explanation:
In NTLM authentication the hash functions as the effective secret. Pass-the-Hash reuses the captured NTLM hash to authenticate without ever cracking the plaintext password.
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47During volatile memory analysis with Volatility, an analyst wants to identify processes hidden from the standard process list by Direct Kernel Object Manipulation (DKOM). Which approach is MOST effective?
Perform Windows memory and registry analysis
Hard
A.Using netscan to correlate network sockets with process IDs.
B.Cross-referencing pslist with psscan, since psscan carves _EPROCESS structures directly from memory pools.
C.Dumping the registry hives and enumerating the Run keys.
D.Running pslist twice and comparing the outputs for inconsistencies.
Correct Answer: Cross-referencing pslist with psscan, since psscan carves _EPROCESS structures directly from memory pools.
Explanation:
DKOM unlinks a process from the doubly-linked _EPROCESS list that pslist walks. psscan instead scans memory pools for _EPROCESS pool tags, revealing unlinked (hidden) processes when compared against pslist.
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48An investigator finds a ShellBag entry referencing a folder path on a removable USB device that is no longer connected. What does this ShellBag artifact most reliably establish?
Understand shellbags, LNK files and jump lists
Hard
A.That the folder was created by the suspect on the local system drive.
B.That the files inside the folder were opened and executed by the user.
C.That the user browsed to and viewed that folder in Windows Explorer at some point, even though the device is absent.
D.That the USB device is currently mapped and accessible on the system.
Correct Answer: That the user browsed to and viewed that folder in Windows Explorer at some point, even though the device is absent.
Explanation:
ShellBags record folder-viewing preferences and access via Explorer. Their presence proves the user navigated to that folder, providing evidence of interaction with removable media even after it is disconnected—but not file execution.
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49An analyst reviews Windows Security logs and finds Event ID 4624 (successful logon) with Logon Type 3 immediately followed by Type 10 from the same source. What scenario does this pattern most strongly suggest?
Understand text-based logs and Windows event logs
Hard
A.Two consecutive local console logons by the same user at the keyboard.
B.A failed logon retry sequence that eventually succeeded locally.
C.A service account (Type 5) starting followed by a scheduled task, unrelated to remote access.
D.Network authentication (Type 3) followed by an interactive Remote Desktop session (Type 10), indicating remote access.
Correct Answer: Network authentication (Type 3) followed by an interactive Remote Desktop session (Type 10), indicating remote access.
Explanation:
Logon Type 3 is a network logon; Type 10 is RemoteInteractive (RDP). The sequence indicates the account authenticated over the network and then established a Remote Desktop session—an important indicator of remote access activity.
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50An examiner encounters a large file with uniformly high entropy (~7.99 bits/byte) and no recognizable header. Which conclusion is BEST supported before further testing?
Overwritten data/metadata detection and encryption
Hard
A.The file is empty slack space that was zero-filled by a wiping tool.
B.The file is definitely AES-encrypted and requires the exact 256-bit key to open.
C.The file is likely encrypted or compressed, since both produce near-maximal entropy and obscure structure.
D.The file is plaintext that has been Base64-encoded multiple times.
Correct Answer: The file is likely encrypted or compressed, since both produce near-maximal entropy and obscure structure.
Explanation:
High entropy near 8 bits/byte is characteristic of both strong encryption and compression, since both remove statistical redundancy. Entropy alone cannot distinguish the two; further signature/structure analysis is required.
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51A malware sample shows a very small .text section but a large section named UPX1 marked as writable and executable, with the entry point pointing into it. What does this indicate?
Detect program packers and footprint minimizing techniques
Hard
A.The binary is packed, and the entry point runs an unpacking stub that decompresses the real code into memory at runtime.
B.The binary uses control-flow flattening to obscure static analysis logic.
C.The executable is digitally signed and the UPX1 section holds the certificate.
D.The .text section was stripped by the linker, leaving only debug symbols.
Correct Answer: The binary is packed, and the entry point runs an unpacking stub that decompresses the real code into memory at runtime.
Explanation:
UPX-style section names, a writable-executable section, and an entry point inside it are classic packing indicators. The stub decompresses/unpacks the original code into memory before transferring control, requiring dynamic unpacking for analysis.
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52An attacker sets a compromised host's system clock backward before creating and modifying files, then restores it. During analysis, which cross-artifact inconsistency is MOST likely to expose this timestamp manipulation?
Trail obfuscation
Hard
A.The $MFT$STANDARD_INFORMATION timestamps conflict with $FILE_NAME timestamps and USN Journal / event log sequence numbers.
B.The registry LastWrite times all show identical values across every key.
C.The prefetch files show a higher run count than the number of logons recorded.
D.The Recycle Bin $I file timestamps exactly match the file creation times.
Correct Answer: The $MFT$STANDARD_INFORMATION timestamps conflict with $FILE_NAME timestamps and USN Journal / event log sequence numbers.
Explanation:
Timestomping typically alters $STANDARD_INFORMATION (user-accessible) but not $FILE_NAME (kernel-maintained). Monotonic sources like the USN Journal and event log record numbers also don't rewind, so cross-referencing exposes the manipulation.
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53An investigator parses a Chromium History SQLite database and needs to convert a visits.visit_time value to a human-readable UTC timestamp. Which epoch and unit must be applied?
Examine the cache, Cookie and history recorded in web browsers
Hard
A.Milliseconds since 1970-01-01 00:00:00 UTC (Unix epoch).
B.Microseconds since 1601-01-01 00:00:00 UTC (the WebKit/Windows FILETIME-style epoch).
C.Nanoseconds since 2001-01-01 00:00:00 UTC (Mac absolute time).
D.Seconds since 1970-01-01 00:00:00 UTC (standard Unix epoch).
Correct Answer: Microseconds since 1601-01-01 00:00:00 UTC (the WebKit/Windows FILETIME-style epoch).
Explanation:
Chromium stores visit_time as microseconds elapsed since 1601-01-01 (the WebKit epoch). Misapplying the Unix epoch yields wildly incorrect dates, a common analyst error.
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54During live response on a running Windows server, an examiner must prioritize evidence collection according to the Order of Volatility (RFC 3227). Which sequence is correct from most to least volatile?
Collect volatile and non-volatile information
Hard
A.Disk data → RAM → CPU registers → archival media → network state.
B.Archival media → disk → temporary files → RAM → CPU registers.
C.RAM → disk data → CPU cache → network connections → temporary files.
D.CPU registers/cache → RAM and network state → temporary files/swap → disk data → archival media.
Correct Answer: CPU registers/cache → RAM and network state → temporary files/swap → disk data → archival media.
Explanation:
RFC 3227 orders collection by volatility: the most ephemeral data (registers/cache), then memory and network state, then temp/swap, then disk, and finally archival/backup media, which is most stable.
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55Which of the following BEST distinguishes 'data hiding' anti-forensics from 'artifact destruction' anti-forensics?
B.Data hiding conceals evidence in a still-recoverable location, while artifact destruction aims to render evidence permanently unrecoverable.
C.Data hiding operates only in RAM, while artifact destruction operates only on disk.
D.Data hiding is legal while artifact destruction is inherently illegal in all jurisdictions.
Correct Answer: Data hiding conceals evidence in a still-recoverable location, while artifact destruction aims to render evidence permanently unrecoverable.
Explanation:
Data hiding (ADS, slack space, steganography) keeps evidence intact but concealed, so recovery is possible if located. Artifact destruction (wiping, secure delete) seeks to eliminate the evidence entirely.
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56A Microsoft Word .docx file is examined. Which statement about its metadata structure is correct?
Examine Windows files and metadata
Hard
A.A .docx embeds metadata only within the NTFS $MFT and not inside the file itself.
B.A .docx stores all metadata in an OLE compound file structure identical to the legacy .doc format.
C.A .docx is a ZIP container; metadata such as author and revision info resides in XML parts like docProps/core.xml and app.xml.
D.A .docx stores author metadata exclusively in EXIF tags appended to the file footer.
Correct Answer: A .docx is a ZIP container; metadata such as author and revision info resides in XML parts like docProps/core.xml and app.xml.
Explanation:
The Office Open XML .docx format is a ZIP archive of XML parts. Document metadata (author, title, revisions, timestamps) lives in docProps/core.xml and docProps/app.xml, extractable by unzipping the file.
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57An organization wants to counter timestomping and log-tampering anti-forensics proactively. Which combination of countermeasures is MOST effective?
Understand anti-forensics countermeasures
Hard
A.Encrypting the entire disk so investigators cannot read tampered artifacts.
B.Forwarding logs to a write-once remote SIEM and enabling the NTFS USN Journal plus periodic hashing of key files.
C.Increasing local log file size and relying solely on $STANDARD_INFORMATION timestamps.
D.Disabling the Recycle Bin and turning off Volume Shadow Copies to reduce clutter.
Correct Answer: Forwarding logs to a write-once remote SIEM and enabling the NTFS USN Journal plus periodic hashing of key files.
Explanation:
Remote, append-only log forwarding prevents local log deletion from erasing evidence, while the USN Journal and file hashing provide tamper-evident change tracking that exposes timestomping and modification.
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58A .lnk (shortcut) file on the desktop points to a document opened from an external drive. Beyond the target path, which additional forensic detail can a well-formed LNK file typically provide?
Understand shellbags, LNK files and jump lists
Hard
A.A complete list of every user account that has ever opened the target.
B.The encryption key used to protect the target file, if any.
C.The full plaintext contents of the target document at creation time.
D.The volume serial number, drive type, and MAC timestamps of the target at the time the shortcut was created.
Correct Answer: The volume serial number, drive type, and MAC timestamps of the target at the time the shortcut was created.
Explanation:
LNK files store rich metadata: the target's MAC times, file size, volume serial number, drive type (fixed/removable), and network path. This helps tie file access to specific volumes, including removable media.
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59An analyst examines the SYSTEM and SOFTWARE hives and wants to determine which USB storage devices were connected and their last-use timestamps. Which registry location is the PRIMARY source?
Perform Windows memory and registry analysis
Hard
A.SOFTWARE\Classes\.lnk file association settings.
D.SYSTEM\CurrentControlSet\Enum\USBSTOR, correlated with SYSTEM\MountedDevices and connection timestamps.
Correct Answer: SYSTEM\CurrentControlSet\Enum\USBSTOR, correlated with SYSTEM\MountedDevices and connection timestamps.
Explanation:
USBSTOR records connected USB mass-storage devices (vendor, product, serial). Correlating with MountedDevices and device-property timestamps establishes which devices were attached and when.
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60When recovering a deleted file on NTFS, why is examining the $MFT often more valuable than raw signature carving for recently deleted files?
Illustrate file carving techniques and ways to recover evidence from deleted
Hard
A.The $MFT automatically decrypts EFS-protected files during recovery.
B.The $MFT physically stores a compressed backup copy of every file's full contents.
C.Signature carving cannot recover any file under 4 KB, whereas the $MFT always can.
D.The $MFT entry may still hold the file's attributes and cluster runlist, enabling accurate reconstruction including fragmented files if clusters are not yet reused.
Correct Answer: The $MFT entry may still hold the file's attributes and cluster runlist, enabling accurate reconstruction including fragmented files if clusters are not yet reused.
Explanation:
A deleted file's $MFT record persists until reused, retaining the $DATA attribute's runlist that maps the file's clusters—even non-contiguous ones. This enables precise, fragment-aware recovery that signature carving cannot match.
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