Module 9 Quiz Flashcards
If an application uses salting when creating passwords, what concerns should a forensics examiner have when attempting to recover passwords?
Salting can make password recovery extremely difficult and time consuming.
The effect on the computer’s CMOS clock could alter files’ date and time values.
There are no concerns because salting doesn’t affect password-recovery tools.
Salting applies only to OS startup passwords, so there are no serious concerns for examiners.
Salting can make password recovery extremely difficult and time consuming.
Rainbow tables serve what purpose for digital forensics examinations?
Rainbow tables are designed to enhance the search capability of many digital forensics examination tools.
Rainbow tables are a supplement to the NIST NSRL library of hash tables.
Rainbow tables contain computed hashes of possible passwords that some password-recovery programs can use to crack passwords.
Rainbow tables provide a scoring system for probable search terms.
Rainbow tables contain computed hashes of possible passwords that some password-recovery programs can use to crack passwords.
Suppose you’re investigating an e-mail harassment case. Generally, is collecting evidence for this type of case easier for an internal corporate investigation or a criminal investigation?
Internal corporate investigation because corporate investigators typically have ready access to company records
Internal corporate investigation because ISPs almost always turn over e-mail and access logs when requested by a large corporation
Criminal investigation because subpoenas can be issued to acquire any needed evidence quickly
Criminal investigation because law enforcement agencies have more resources at their disposal
Internal corporate investigation because corporate investigators typically have ready access to company records
Which forensic image file format creates or incorporates a validation hash value in the image file?
Expert Witness
AFF
SMART
All of the above
All of the above
After you shift a file’s bits, the hash value remains the same.
True
False
False
The National Software Reference Library provides what type of resource for digital forensics examiners?
A repository for software vendors to register their developed applications
A list of MD5 and SHA1 hash values for all known OSs and applications
A list of digital forensics tools that make examinations easier
Reference books and materials for digital forensics
A list of MD5 and SHA1 hash values for all known OSs and applications
For which of the following reasons should you wipe a target drive?
a: To ensure the quality of digital evidence you acquire
b: To make sure unwanted data isn’t retained on the drive
Both a and b
Neither of the above
Both a and b
The Known File Filter (KFF) can be used for which of the following purposes?
a: Filter known program files from view.
b: Calculate hash values of image files.
c: Compare hash values of known files with evidence files.
Both a and c
Both a and c
Commercial encryption programs often rely on key escrow technology to recover files if a password or passphrase is lost.
True
False
True
You’re using Disk Management to view primary and extended partitions on a suspect’s drive. The program reports the extended partition’s total size as larger than the sum of the sizes of logical partitions in this extended partition. What might you infer from this information?
Nothing; this is what you’d expect to see.
The disk is corrupted.
There’s a hidden partition.
The drive is formatted incorrectly.
There’s a hidden partition.
In steganalysis, cover-media is which of the following?
The type of steganographic method used to conceal a message
The file a steganography tool uses to host a hidden message, such as a JPEG or an MP3 file
A specific type of graphics file used only for hashing steganographic files
The content of a file used for a steganography message
The file a steganography tool uses to host a hidden message, such as a JPEG or an MP3 file
Scope creep happens when an investigation goes beyond the bounds of its original description.
True
False
True
The likelihood that a brute-force attack can succeed in cracking a password depends heavily on the password length.
True
False
True
Which of the following represents known files you can eliminate from an investigation?
Files associated with an application
Any graphics files
Any files pertaining to the company
All of the above
Files associated with an application
Block-wise hashing has which of the following benefits for forensics examiners?
Allows validating sector comparisons between known files
Provides a faster way to shift bits in a block or sector of data
Provides a method for hashing sectors of a known good file that can be used to search for data remnants on a suspect’s drive
Verifies the quality of OS files
Provides a method for hashing sectors of a known good file that can be used to search for data remnants on a suspect’s drive
