Initial attack and defense world Misc

·this_is_flag

·pdf

· Tathagata thirteen palms

·give_you_flag

·base64÷4

The first time you enter the world of attack and defense, you must select the soft persimmon , But the problem is really brain opening , It really enriches my imagination .

1、this_is_flag

Sign in problem , Don't think too much , Direct dry flag.

  Don't think ,  Don't think ,  Don't think ！！！

2、pdf

See the topic and come up with flag Hide behind picture

Be opportunistic        flag{security_through_obscurity

Because I can copy without any tools flag

Little surprise

3、 Tathagata thirteen palms

Declassify the strange theory —— Discuss Zen with Buddha

  

MzkuM3gvMUAwnzuvn3cgozMlMTuvqzAenJchMUAeqzWenzEmLJW9

This string of characters is very similar base64 But it's not

After analyzing the title, we found that 13 Palm stands for ROT13（ Although I have tried many times ）

ZmxhZ3tiZHNjamhia3ptbmZyZGhidmNraWpuZHNrdmJramRzYWJ9

after base64 Then we get the conclusion flag

flag{bdscjhbkzmnfrdhbvckijndskvbkjdsab}

4、give_you_flag

Splicing QR code

When you open the dynamic graph, you can see that this is how to extract the key frame to get the two-dimensional code , But the QR code is not available .

                             

  After Baidu's guidance, I realized that I had to splice two-dimensional codes , Find a QR code on the Internet and cut a corner . After that, a complete two-dimensional code is spliced by tools . After some hard work, I finally succeeded in trying out the right position ！！

flag{e7d478cf6b915f50ab1277f78502a2c5}

A surprise every day

5、base64÷4

base16 decode , Simple check-in question