What is data carving and how does it work
File or data carving is a term used in the field of Cyber forensics.
Cyber forensics is the process of acquisition, authentication, analysis and documentation of evidence extracted from and/or contained in a computer system, computer network and digital media..
What is the difference between physical and logical images
There is a significant difference between physical and logical images. A physical image collects all bits of data on the storage medium, regardless of whether it is allocated or unallocated to a file system. A logical image collects only the data that is visible to the file system.
What is image Forensic
Put simply, a forensic image is a copy of unaltered electronic information. An image file can contain a single file or an entire hard drive. Obtaining a forensic image is a crucial first step to any digital forensic investigation, and if it is not done properly you may have your evidence deemed inadmissible.
How do you become a forensic imaging technologist
A bachelor’s of science in radiographic technology, or BSRT, is the minimum education needed for a forensic radiology career, according to health career website InnerBody. States also require a license from the American Registry of Radiologic Technologists (ARRT.)
How digital forensic images are collected
Evidence that May be Gathered Digitally For example, mobile devices use online-based based backup systems, also known as the “cloud”, that provide forensic investigators with access to text messages and pictures taken from a particular phone.
Why is forensic imaging important
Creating and backing up a forensic image helps prevent loss of data due to original drive failures. The loss of data as evidence can be detrimental to legal cases. Forensic imaging can also prevent the loss of critical files in general.
How do I create a forensic duplicate hard drive
The dd utility in UNIX is certified to make forensic duplicates. dd is a UNIX tool, so the original drive needs to be mounted in UNIX. Raw dd duplicates need to be verified with a hashing (signatures), but there are specialized version of dd or scripts that include the verification.
What is the process of network forensic
The process of capture, recording, and analysis of network packets to determine the source of network security attacks is known as Network Forensics. … Network Forensics examinations have seven steps including Identification, Preservation, Collection, Examination, Analysis, and Presentation and Incident Response.
Why you need to use a write blocker
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. … The tool shall not prevent obtaining any information from or about any drive.
How do you create a forensic disk image
Open Windows Explorer and navigate to the FTK Imager Lite folder within the external HDD.Run FTK Imager.exe as an administrator (right click -> Run as administrator).In FTK’s main window, go to File and click on Create Disk Image.Select Physical Drive as the source evidence type. Click on Next.Dec 22, 2017
What if the hash of your original does not match your forensic copy
If the hash code of the image does not match the hash code of the original drive, a new image must be taken, as non-matching hash codes indicate that the image created was not an exact match of the original drive. Hash codes are also used to assure the integrity of the investigation.
Why is forensic duplication needed
Overview. Forensic duplication is the copying of the contents of a storage device completely and without alteration. … Forensic duplication is the primary method for collecting hard disk, floppy, CD/DVD, and flash-based data for the purpose of evidence gathering.
What is digital imaging in forensics
Digital Forensic Imaging is defined as the processes and tools used in copying a physical storage device for conducting investigations and gathering evidence. … The image is an identical copy of all the drive structures and contents.
What is a forensic duplicate image
A forensic clone is an exact, bit-for-bit copy of a hard drive. It’s also known as a bitstream image. In other words, every bit (1 or 0) is duplicated on a separate, forensically clean piece of media, such as a hard drive.
What is the first rule of digital forensics
The first rule of digital forensics is to preserve the original evidence. During the analysis phase, the digital forensics analyst or computer hacking forensics investigator (CHFI) recovers evidence material using a variety of different tools and strategies.
Is cloning a hard drive legal
If you are cloning your own drive or cloning someone else’s drive with permission, yes, it is legal. As long as after the fact, you are not using software on both drives without the appropriate number of licenses.
What is device imaging
Device imaging is the process of fully configuring devices with the apps and services users need, but the “how” of imaging is changing. Device imaging is your “copy / paste” for new devices. … But device imaging is changing, making it easier and faster for IT teams to provision and manage devices.
What if your OS automatically mounts your flash drive prior to creating your forensic duplicate
The automatic process of mounting a device can lead to changes – such as file indexing or changes in timestamps – to occur on a storage device, especially in the unallocated sectors of a partition containing deleted files, which when mounted can lead to potential evidence being overwritten or destroyed .
What is a forensic copy
A forensic copy is a file-level copy of data from a hard disk. Before the copies are taken, the parties involved in the discovery process agree what type of files (email, purchase records, timecards, etc.) will be part of the forensic analysis, and then only those files are copied.
Why is it important to analyze images in a forensic investigation
Since images can be used to determine responsibilities – or as part of evidence in administrative, civil, or criminal cases – the forensic analysis of digital images has become more significant in determining the origin and authenticity of a photograph in order to link an individual to a device, place, or event.