Warmup Rev

Description

Look Carefully! What you want lies inside straight in front of your eyes!

Author: k1n0r4

Difficulty level: Beginner

Points: 100

Category: Reverse Engineering

Solution

The given file is an ELF 64 bit binary. Let's use a decompiler to decompile the binary.

The logic under main function indicates that binary inputs the flag, reverses it and compares against a hardcoded string.

On reversing the given string, we retrive the flag.

print("}!d33dn1_3gn3ll4hc_pUmr4w_4_51_s1ht{ftcitkahs"[::-1])

Flag

shaktictf{th1s_15_4_w4rmUp_ch4ll3ng3_1nd33d!}