Posts Tagged “exif”

The goofile Backtrack menu item ( Backtrack > Information Gathering > Web Application Analysis > Open Source Analysis ) is a great little Python script that provides easy access and results from one of Google’s Advanced Searches. During the information gathering phase of a penetration test it provides a great method to collect data about your target by searching a domain for specific file types. Below we describe goofile in more detail and provide an example of how goofile works.

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Many people still seem to not be aware of EXIF data and the information it provides anyone that wants to view it. EXIF data is attached to image files as well as other files and provides all sorts of details from file creation time to exact GPS coordinates. This is the type of data that was extracted from an image uploaded by Vice Magazine that gave away John McAfee’s location when he escaped Belize. On Backtrack Linux there are numerous tools to extract EXIF data including exiftool which is written in Perl and easy to use. Below we will describe exiftool, which is located in /pentest/misc/exiftool/ or /usr/bin, and provide examples to show how easy it is to use.

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I personally use exiftool to extract EXIF or Exchangeable Image File data from files including Microsoft Office files such as .doc, .xls, and .ppt. The newer versions of Microsoft Office have new file extensions as you know which are .docx, .pptx, and .xlsx. The version of exiftool on Backtrack Linux doesn’t extract EXIF data from the latest MS Office file formats however you can easily download the latest exiftool for use on Backtrack Linux 5. Use the information below to download the latest exiftool on Backtrack, install a necessary Perl library, and then start extracting EXIF data from the newer Microsoft Office file versions.

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The past couple of days I have written a couple articles about how to view iPhone image GPS data on a Mac using Photoshop and Preview. Each of these articles included a mini warning at the bottom of the article noting that you should keep the GPS data in mind when uploading images to social media sites, sharing the images, etc. so I figured I should write a quick article showing a method you could use to remove this GPS data before sharing the images either on social media sites, via email, etc. Below there are details of an easy way to remove GPS details from images on Mac OSX.

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