Hacking Series Part 21

Challenge: PowerFul_Crackme

Category: reverse engineering

We are given an ELF named “PowerFul_Crackme”. After opening it in IDA, you see that the program enters in main and prints “The magic string: ” with printf.

It then goes on to initialize a counter at loc_11B3 from 0–9, which is stored in var_4. If the counter is below 9, scanf is called and the…