Unit 3: Anti-Forensics Techniques and Windows Forensics - Practice Quiz

CSC303 — Digital Forensics 60 Questions
0 Correct 0 Wrong 60 Left
0/60

1 What 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

2 When 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

3 In 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

4 File 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)

5 File 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

6 Which attack tries every possible combination of characters to guess a password?

Explore password cracking/bypassing techniques Easy
A. SQL injection attack
B. Brute-force attack
C. Man-in-the-middle attack
D. Phishing attack

7 A dictionary attack cracks passwords by:

Explore password cracking/bypassing techniques Easy
A. Disabling the login screen
B. Guessing based on random noise
C. Reading the password from memory
D. Trying words from a predefined list

8 What 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

9 How 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

10 In 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)

11 Trail 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

12 What 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

13 Encryption 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

14 What 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

15 Which 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

16 Which 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

17 The 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

18 Which 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

19 What 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

20 Windows 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

21 An 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

22 On 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

23 An 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

24 An 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

25 During 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

26 A 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

27 An 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

28 Which 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

29 An 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

30 A 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

31 Which 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

32 Following 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

33 An 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
A. HKCU\Software\Microsoft\Windows\CurrentVersion\Run
B. HKLM\SYSTEM\CurrentControlSet\Enum\USBSTOR
C. HKCU\Control Panel\Desktop
D. HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon

34 In 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

35 An 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

36 Which 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

37 An 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

38 A .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

39 An 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

40 On 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

41 On 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.

42 An 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.

43 In 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.

44 An 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.

45 A 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.

46 An 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.
B. Rainbow table lookup, exploiting precomputed hash-to-plaintext mappings.
C. Credential stuffing, exploiting reused plaintext passwords across services.
D. Golden Ticket, exploiting a forged Kerberos TGT signed with the KRBTGT key.

47 During 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.

48 An 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.

49 An 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.

50 An 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.

51 A 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.

52 An 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.

53 An 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).

54 During 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.

55 Which of the following BEST distinguishes 'data hiding' anti-forensics from 'artifact destruction' anti-forensics?

Understand anti-forensics techniques Hard
A. Data hiding always uses encryption, while artifact destruction always uses steganography.
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.

56 A 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.

57 An 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.

58 A .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.

59 An 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.
B. SOFTWARE\Microsoft\Windows\CurrentVersion\Run autostart entries.
C. SYSTEM\CurrentControlSet\Services\Eventlog log configuration keys.
D. SYSTEM\CurrentControlSet\Enum\USBSTOR, correlated with SYSTEM\MountedDevices and connection timestamps.

60 When 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.