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steganography

Steganography

JPG image with encoded data

Steganography is a method of concealing hidden messages inside objects. In the context of computing, it may be a message encoded into an image, audio file or another type of media.

Some files we found in El Paso drop contain hidden information encoded with steghide tool.

Getting steghide

Decoding information from images

Example how to decode information from one of El Paso files.

  1. Download maria_1.jpg
  2. Decode: ./steghide extract -sf Maria_1.jpg
  3. When prompted for passcode, press enter
  4. File code.txt should be created

Your result should look like:

430092839057259t6 UNLOCK AGENT SYSTEM
FRIENDLY CODE 55 29 54 88 84 46 06 26
DO NOT CUT WORMS
WE LOVE YOU
FOREVER BEAUTIFUL
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steganography.txt · Last modified: 2023/09/12 21:17 by thehoax