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攻防世界 misc 高手进阶区 a_good_idea
2022-07-04 22:17:00 【春风拂槛露华浓。】
a_good_idea
题目描述:汤姆有个好主意
给了一个tom的图片
关于图片的题目
第一步都猜测是隐写,丢到StegSolve里来回看看,没有结果
第二步用010打开看看
尝试搜索flag字符串
拉到末尾,看到三个有三个文件
应该是文件包含
将图片后缀改为zip,解压
查看hint提示
尝试找找像素的秘密?
常规还是将两张图片依次拖到StegSolve里看看,无果
将两张图合起来?
红点,就是像素对比度主导啊,用ps打开,曝光度调到最大
扫描二维码
NCTF{
m1sc_1s_very_funny!!!}
总结:
010看文件包含
改后缀zip解决文件包含
StegSolve xor合图片
黑里透红像素点ps调曝光度
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