From the course: Cybersecurity Foundations: Computer Forensics

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Hex editor analysis of a bit-shifted file

Hex editor analysis of a bit-shifted file

From the course: Cybersecurity Foundations: Computer Forensics

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Hex editor analysis of a bit-shifted file

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- [Instructor] Criminals shift bits in a file to hide a secret. To reveal the secret, you need a hex editor to shift the bits back to their original positions. Here we have a mystery file called secret.txt. Let me try to open this file using Notepad. I don't know what happened to the original text, but my strong suspicion is that the bits in the file might have been shifted. To know whether this is true or not, I'm going to open this file in Hex Workshop, a commercial hex editor. Compared to Neo, Hex Workshop provides more features in its trial version. Go to file, click open, choose secret.txt, click open. You'll find the secret.txt file in your exercise files folder. We'll try to shift the bits to your left first. Go to tools, operations, shift left. Choose eight bit unsigned byte. Click okay. It's still scrambled. Now let's try to shift the bits to your right. Let's close the file. Don't save…

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