misc3~7

3. QR code

First use QR Open view , There is no information

  Decomposing this file

Got it

And then get the password through brute force cracking 7639

Enter the password to get flag 了

 

4.N There are ways to solve

When you open this file, you will first see the following ：

  Drag the file to the desktop and open it in Notepad

  Judge that this is a base64 Compiled pictures

  open base64 Online conversion tools , website :http://tool.chinaz.com/tools/imgtobase/

Identify the QR code to get flag : KEY{dca57f966e4e4e31fd5b15417da63269}

5. You drove me away

Put the picture in a 16 The system editor opens Pull to the bottom and you get flag

6 Great white

Open the file and see half of the picture , Drag the picture into the hex editor to change the length of the picture

Get the full picture

7. Basic crack

Brute force

 

  Enter the file password to open the file

obtain ZmxhZ3s3MDM1NDMwMGE1MTAwYmE3ODA2ODgwNTY2MWI5M2E1Y30= 

Judge that this is base64 Bit encrypted , And then decrypt it

 flag{70354300a5100ba78068805661b93a5c}