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buuctf-misc-刷新过的图片
source link: http://www.cnblogs.com/junlebao/p/13837897.html
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知识点:F5隐写
kali中安装F5-steganography 工具
git clone https://github.com/matthewgao/F5-steganography
解密的时候输入:
java Extract /图片的绝对路径 [-p 密码] [-e 输出文件]
本题就是利用kali下的工具解密的
我们将图片拖进kali
通过上面的命令
然后我们进入,F5-steganogtaphy目录中,查看output.txt,linux中查看txt文件,不行,我们拖到window中
然后再用hxd看看有什么
发现是5048开头的文件这不就是zip吗?
而且还发现了伪加密,直接将01改成00然后保存,改扩展名为.zip格式,然后解压,获得
flag{96efd0a2037d06f34199e921079778ee}
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