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Digital Forensics with Kali Linux

You're reading from   Digital Forensics with Kali Linux Perform data acquisition, digital investigation, and threat analysis using Kali Linux tools

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Product type Paperback
Published in Dec 2017
Publisher Packt
ISBN-13 9781788625005
Length 274 pages
Edition 1st Edition
Concepts
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Author (1):
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Shiva V. N. Parasram Shiva V. N. Parasram
Author Profile Icon Shiva V. N. Parasram
Shiva V. N. Parasram
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Table of Contents (11) Chapters Close

Preface 1. Introduction to Digital Forensics 2. Installing Kali Linux FREE CHAPTER 3. Understanding Filesystems and Storage Media 4. Incident Response and Data Acquisition 5. Evidence Acquisition and Preservation with DC3DD and Guymager 6. File Recovery and Data Carving with Foremost, Scalpel, and Bulk Extractor 7. Memory Forensics with Volatility 8. Autopsy – The Sleuth Kit 9. Network and Internet Capture Analysis with Xplico 10. Revealing Evidence Using DFF

Maintaining evidence integrity


In an effort to provide proof that the evidence was not tampered with, a hash of the evidence should be provided before and during, or after, an acquisition.

In Kali Linux, we can use the md5sum command followed by the path of the device, to create an MD5 hash of the evidence/input file. For example, md5sum /dev/sdx.

You may also try the command with superuser privileges by typing sudo md5sum /dev/sdx.

For this example, the 2 GB flash drive that I'll be using (named test_usb) is recognized as sdb, and so the command I will be using, is shown in the following screenshot:

In the previous example, the output of the md5sum of the 2 GB flash drive is displayed as 9f038....1c7d3  /dev/sdb. When performing the acquisition or forensic imaging of the drive using DC3DD, we should also have that exact result when hashing the created image file output to ensure that both the original evidence and the copy are exactly the same, thereby maintaining the integrity of the evidence...

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