Prompt

The hackers have hidden a message in this image. Find out what it is.

Walk-Through

This challenge will give you experience using basic tools to find messages hidden with steganography.

The Digital Invisible Ink Toolkit was used to hide a message using the BlindHide mode. The same tool can be used to reveal the hidden message.

You will need to set the filename of the output file using the “Set Message” option. This can be whatever you would like. In this example, we set it to out.txt.

When attempting to open the decoded file as a text document, you will find that the file appears as gibberish. However, there is a marker “JFIF” which is used to indicate that the decoded file is actually a .jpg image. This can be confirmed by running the Linux file command on the output document.

Questions

What is the hidden flag?

Use the Digital Invisible Ink Toolkit to obtain the hidden image using the “BlindHide” mode.

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