Writeup for the IOException recon problem in EasyCTF 2015 by µ’s
By googling "ioexception michael zhang" and "ioexception osu", we find:
The MuseScore profile leads us to a blog on WordPress.com.
Upon examining the picture in the header of the website, we discover that its filename is ioexception_recon.png
.
If we examine this file with a tool to read EXIF data such as Jeffrey's Exif Viewer,
we discover part 1 embedded in the picture as an EXIF comment.