Presentation on theme: "Chapter 8 Recovering Graphics Files"— Presentation transcript: 1 Chapter 8 Recovering Graphics Files Show
2 Objectives Describe types of graphics file formats 3 Recognizing a Graphics File 4
Understanding Bitmap and Raster Images 5 Understanding Vector Graphics 6 Understanding Metafile Graphics 7 Understanding Graphics File Formats
8 Understanding Graphics File Formats 9 Understanding Digital Camera File Formats
10 Understanding Digital Camera File Formats
11 Understanding Digital Camera File Formats 12 Understanding Digital
Camera File Formats 13 Understanding Digital Camera File Formats
14 Understanding Digital Camera File Formats
15 Understanding Digital Camera File Formats 16 Understanding Digital Camera File Formats
17 Understanding Data Compression 18 Lossless and Lossy Compression
19 Locating and Recovering Graphics Files 20 Identifying Graphics File Fragments 21 Repairing Damaged
Headers
22 Repairing Damaged Headers 23 Repairing Damaged Headers
24 Repairing Damaged Headers 25
Searching For and Carving Data from Unallocated Space
26 Searching For and Carving Data from Unallocated Space 27 Searching For and Carving Data from Unallocated Space 28 Searching For and
Carving Data from Unallocated Space 29 Searching for and Carving Data from Unallocated Space 30 Searching for and Carving Data from Unallocated Space
31 Rebuilding File Headers 32 Rebuilding File Headers 33 Rebuilding File Headers 34
Rebuilding File Headers 35 Rebuilding File Headers
36 Rebuilding File Headers 37 Reconstructing File
Fragments 38 Reconstructing File Fragments
39 Reconstructing File Fragments 40 Reconstructing
File Fragments 41 Reconstructing File Fragments
42 Identifying Unknown File Formats 43 Analyzing Graphics File Headers
44 Analyzing Graphics File Headers 45
Analyzing Graphics File Headers 46 Tools for Viewing Images
47 Understanding Steganography in Graphics Files 48 Understanding Steganography in Graphics Files 49 Understanding Steganography in Graphics Files
50 Understanding Steganography in Graphics Files
51 Understanding Steganography in Graphics Files 52 Understanding Steganography in Graphics Files 53 Understanding Steganography in Graphics Files
54 Using Steganalysis Tools 55 Understanding Copyright Issues with Graphics
56 Summary Three types of graphics files
57 Summary Digital camera photos are typically in raw and EXIF JPEG formats Recovering image files Carving
file fragments Rebuilding image headers The Internet is best for learning more about file formats and their extensions Software Image editors Image viewers Guide to Computer Forensics and Investigations, Fifth Edition 58
Summary Steganography Steganalysis What is true about JPEG and TIF files?TIFF files store much more image data than their JPEG counterparts. This makes them a favorite with photographers due to their stunning image quality. However, the higher resolution requires much larger file sizes — meaning they can be awkward to use and more difficult to store.
When investigating graphics files you should?When investigating graphics files, you should convert them into one standard format.
How can you identify an unknown graphics file format that is unrecognized by your forensics tool?Explain how to identify an unknown graphics file format that your digital forensics tool doesn't recognize. You need to examine a copy of the unknown file with a hexadecimal editor to find the hex code for the first several bytes of the file.
Which of the following should you wipe a target drive for?Why should you wipe a target drive? To ensure the quality of digital evidence and to make sure unwanted data isn't retained on the drive.
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