Hidden data has been around for a long time, from Julius Ceasar’s cipher to modern data cryptography. Some of the techniques to hide data are simple; some are extremely sophisticated. With the proliferation of sophisticated tools for law enforcements to examine digital contents, so have anti-forensics tools and techniques for people wishing to hide their tracks and throw investigators off their trails. We will examine a very simple technique to hide data – delete the file types, and using tools to easily discover the real files.

You are given a hard drive to analyze and the following files have no extensions.  Download the zip file below and try to find the extensions of the files.  The answers are below.

Answers.txt(1.21 KB) marcbudofsky, Mar 17 2013, 9:42 PM
Files.zip(3.41 MB) marcbudofsky, Mar 17 2013, 9:42 PM

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