NCTF 2018 part Title WP (1)

1. 1. 
      
2. WEB- Sign in problem ： Look directly at cookie Just fine , Directly to flag
3. RE- Back door back door ：
   Download a 64 Bit .exe Program ,ida Open it directly , Observe main function , Discovery function hereisyourflag(void), Array variable found flagenc, Turn into char type .
   
   Directly to flag.
   1. 
      

3.PWN-sendflag:

IDA open , Obviously, it overflowed .

Send eight directly a Get flag.

4.MISC-CalcNow:

NC After the connection, an expression to be evaluated will pop up , It is required to calculate in two seconds .

I wrote a python Script to solve .

== Level too food , Limited ability , To everyone Oze 了 .

Wait for the big guys WP