随波逐流工作室—-探索前沿科技,分享最新软件。点击标题下蓝字“长弓三皮”关注,我们将为您提供有深度、有价值、有意思的阅读。
朋友们,现在只对常读和星标的公众号才展示大图推送,建议大家把长弓三皮“设为星标”,否则可能就看不到了啦!
作者:随波逐流
先看一个压缩包
再看其他zip中也是一样的图片
不管他是什么,先拖入一个[随波逐流]CTF编码工具
[随波逐流]CTF编码工具---文件---读取为16进制
有一串base64
再看其他,也有
iVBORw0KGgoAAAA开头,应该是一个图片
python代码 :
import zipfile
for i in range(1, 87):
# 构建文件路径
file_path = 'g:\\temp\flag\' + str(i) + '.zip'
# 读取压缩包
z = zipfile.ZipFile(file_path, 'r')
# 读取压缩包内的图片内容
filename = z.namelist()[0]
content = str(z.read(filename))
# 把base64编码部分打印出来
len1 = len(content)
content1 = content[len1 - 101:len1 - 1]
print(content1)
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[随波逐流]CTF编码工具---图片---base64转图片
flag{gif_is_so_easy}
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