CTF-Misc-N solution

Blog description

The information involved in this article comes from Internet collation and personal summary, which means personal learning and experience summary. If there is any infringement, please contact me to delete, thank you! This article is only for learning and communication, not for illegal use!

CTP platform

website

https://buuoj.cn/challenges

subject

Misc class, N solutions

thinking

This kind of topic downloads the file first, it is an exe file

Using bless

Drag the file into it and it's a picture

The base64 obtained is

data:image/jpg;base64,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

decode

http://tool.chinaz.com/tools/imgtobase/