Problem: [GHCTF 2025]mypixel
思路
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一开始尝试所有的png图片的处理，从zsteg -a中发现了一个zipfile
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解码后得到一个黑白间隔的图片文件，后没有思路后，看了wp，读取图片的像素，pixel值为0时映射为1，而pixel值为255时映射为0.例如如下的代码得到
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EXP
- 具体攻击代码
总结
- 对该题的考点总结