https://buuoj.cn/challenges#[GUET-CTF2019]soul%20sipse![BUUCTF：[GUET-CTF2019]soul sipse_ico](/i/li/?n=2&i=images/blog/202306/19154610_649007c2b917981892.png?,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_30,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=/resize,m_fixed,w_1184 "在这里插入图片描述")
out.wav可用Steghide无密码分离出download.txt
![BUUCTF：[GUET-CTF2019]soul sipse_无密码_02](/i/li/?n=2&i=images/blog/202306/19154610_649007c2da96512202.png?,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_30,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=/resize,m_fixed,w_1184 "在这里插入图片描述")
download.txt
https://share.weiyun.com/5wVTIN3下载得到GUET.png，修改为正确的PNG文件头
![BUUCTF：[GUET-CTF2019]soul sipse_ide_03](/i/li/?n=2&i=images/blog/202306/19154611_649007c3295bf8330.png?,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_30,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=/resize,m_fixed,w_1184 "在这里插入图片描述")
保存得到正常的图片。如下
![BUUCTF：[GUET-CTF2019]soul sipse_ide_04](/i/li/?n=2&i=images/blog/202306/19154611_649007c3584a993970.png?,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_30,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=/resize,m_fixed,w_1184 "在这里插入图片描述")
\u0034\u0030\u0037\u0030\u000d\u000a\u0031\u0032\u0033\u0034\u000d\u000aUnicode解码
![BUUCTF：[GUET-CTF2019]soul sipse_ico_05](/i/li/?n=2&i=images/blog/202306/19154611_649007c39510940003.png?,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_30,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=/resize,m_fixed,w_1184 "在这里插入图片描述")
4070
+1234
------
5304flag{5304}