Which of the following organizations have a standard for verifying digital forensics tools?
The overall governing organization for the testing and validation of digital forensics tools in the United States is the Computer Forensics Tool Testing program (CFTT) at the National Institute of Standards and Technology (NIST). The CFTT develops testing methodology for specific tools.
Can Live acquisitions be replicated?
A live acquisition can be replicated. Data can’t be written to disk with a command-line tool. In testing tools, the term “reproducible results” means that if you work in the same lab on the same machine, you generate the same results.
Which is the feature in forensics tool which is used to re create a suspect drive to show what happened during a crime or an incident?
What is the purpose of the reconstruction function in a forensics investigation? Re-create suspect’s drive to show what happened during a crime or incident. What are the subfunctions of extraction? In what temporary location below might passwords be stored?
Which of the following is stated within the ISO 27037 standard?
ISO standard 27037 states that the most important factors in data acquisition are the DEFR’s competency and the use of validated tools. All forensics acquisition tools have a method for verification of the data-copying process that compares the original drive with the image.
How do you determine best data acquisition?
Determine the Best Acquisition Method
- Size of the source disk: Know if you can retain the source disk as evidence or return it to the owner. …
- Methods to reduce data size are: Use Microsoft disk compression tools like DriveSpace and DoubleSpace which exclude slack disk space between the files.
Can be software or hardware and are used to protect evidence?
Chapter 6-13 multiple choice
| Question | Answer |
|---|---|
| ____ can be software or hardware and are used to protect evidence disks by preventing you from writing any data to the evidence disk. | Write-blockers |
| Many vendors have developed write-blocking devices that connect to a computer through FireWire,____ 2.0,and SCSI controllers. | USB |
At which stage of the digital forensics process would a write blocker be used?
A write blocker, which is designed to prevent the alteration of data during the copying process (Cybercrime Module 4 on Introduction to Digital Forensics), should be used before extraction whenever possible in order to prevent the modification of data during the copying process ( SWGDE Best Practices for Computer …
What is the purpose of the reconstruction function in a forensic investigation?
What is the purpose of the reconstruction function in a forensics investigation? Re-create a suspect’s drive to show what happened during a crime or incident.
What is the goal of the Nsrl project created by NIST *?
The National Software Reference Library (NSRL) is designed to collect software from various sources and incorporate file profiles computed from this software into a Reference Data Set (RDS) of information.
When would you use a write blocker?
Hardware write-blockers commonly are used when acquiring a suspect’s media. When a drive is connected to a Microsoft Windows operating system, changes are made to that drive. These hardware write-blockers will prevent Windows or other operating systems from writing to that drive.
What do write blockers do?
A write blocker is any tool that permits read-only access to data storage devices without compromising the integrity of the data. A write blocker, when used properly, can guarantee the protection of the data chain of custody.
What is a forensic read write blocker?
A forensic disk controller or hardware write-block device is a specialized type of computer hard disk controller made for the purpose of gaining read-only access to computer hard drives without the risk of damaging the drive’s contents. … It allows the investigator to read, but not alter the device under investigation.
What are the advantages of physical write blockers over software write blockers?
Is not reliant on an underlying operating system or software-based subsystem. Is easier to explain and generally makes more “sense” to non-technical people. Clear visual indication of function through physical lights/switches. Generally provides built in interfaces to a number of storage devices (IDE, SATA, etc.).
Why write blocking devices are used by digital investigators?
A write blocker allows read-only access of a digital device without compromising data integrity in any way. … When used properly, a write blocker guarantees that the data inside a digital storage device remains intact.
What is the recommended forensic image format for creating a forensic image of CCTV DVR hard drive?
DVR Examiner’s imaging program creates “DD,” or raw images, which are the ideal way to work with images in DVR Examiner.
Why is a write blocker needed during the acquisition phase of digital forensics?
What are Write Blockers? Write Blocker is a tool designed to prevent any write access to the hard disk, thus permitting read-only access to the data storage devices without compromising the integrity of the data. A write blocking if used correctly can guarantee the protection of the chain of custody.
Why is it important to ensure the image is read write protected when mounting it?
A write blocker is necessary, because if any bit changes for any reason—OS, driver-level, file-system level or below—then the hashes of the collected vs analysed system will no longer match, and the drive’s admissibility as evidence may be questioned.
How do you use a hardware write blocker?
Why is a write blocker important while performing an acquisition?
Write Blocker preserves the integrity of the file metadata. Allow acquisition of data from a storage device without changing the drive’s content. Write commands are blocked.
Is evidence that has been acquired without a write blocker admissible in court?
Without a write blocker, any action taken by a digital forensic examiner will be recorded on the drive, no matter how minor or inconsequential. Even these miniscule changes can cast a shadow of doubt on the investigation and render any evidence collected inadmissible in a legal proceeding.
Which of the following are steps in the digital forensic process?
Process of Digital forensics includes 1) Identification, 2) Preservation, 3) Analysis, 4) Documentation and, 5) Presentation.
What is difference between disk imaging and write blocking?
An imaging device contains read-only access without the risk of damaging the drive’s contents. An imaging device differs from a write-blocker in that it creates a forensic image for you. This might be a good alternative to using a write blocker, especially if you are not an expert at the process of creating an image.
Is it OK if minor alterations occur in the evidence during forensic analysis?
Image, protect and preserve the evidence during the forensic examination from any possible alteration, damage, data corruption, or virus introduction ,insuring evidence is not damaged, tainted or in any other way rendered inadmissible in court.
Does EnCase have a write blocker?
Guidance Software released software write blocker as a standalone module for EnCase. The FastBloc® SE (Software Edition) module is a collection of tools designed to control reads and writes to a drive attached to a computer through USB, FireWire, and SCSI connections.