Another easy stego challenge. The challenge consists of a HTML file. Opening it up, reveals that there is a table present. There were various cells present with nearly-same background color. Original file link here - glasses.tar.gz. A sample from the original HTML file. <td style="width: 7.75757575757576px; background-color: rgb(255, 255, 255);"></td> <td style="width: 7.75757575757576px; background-color: rgb(255, 255, 255);"></td> <td style="width: 7.75757575757576px; background-color: rgb(255, 255, 254);"></td> <td style="width: 7.75757575757576px; background-color: rgb(255, 255, 254);"></td> <td style="width: 7.

This was a easy one. We are required to find the flag in this image. This is the original image. Running file, shows nothing suspicious. stego_50.jpg: JPEG image data, JFIF standard 1.02, aspect ratio, density 1x1, segment length 16, baseline, precision 8, 430x425, frames 3 Running a binwalk, we can see that there is a ZIP archive appended to the end of the JPEG image. DECIMAL HEXADECIMAL DESCRIPTION ——————————————————————————– 0 0x0 JPEG image data, JFIF standard 1.

Here is our original picture. It is a picture of Emma Watson in an event. We are to extract the flag from this image.  I checked for common anomalies in the picture but, couldn’t find any. No extra information in the metadata or the blob content of the image. Then I suspected if it is LSB steganography and checked for it too. But, there could be no meaningful data extracted from the LSB bits.