Find The flag - CTF01

Assalamualaikum!

Welcome to the IHC Blog. Today, we have an exciting Steganography challenge for you to solve.

Let's Try to Slove The Challenge.

Challenge Details:

CTF Name: Find the flag.

Topic: Steganography

Flag Format: IHC_CTF{}

CTF Link: https://t.me/ctf_invisiblehc/2

Description:

Submit the flag and get a "netflix" cookie and so on.

Solution:

With the challenge we get this JPEG image: CTF01

The challenge name and description clearly indicate that we need to use a steganography decoder tool to extract hidden data from the image.

First, we use the command to extract hidden data from the image.

steghide extract -sf CTF01.jpg

we need a passphrase to reveal the hidden content. By carefully examining the challenge description, we discover a special text enclosed in double quotation marks:

"netflix"

Excitedly, we try "netflix" as the passphrase.

After extracting the image, we discovered a txt file.

When reading the file,

we finally found the flag:

IHC_CTF{3NCRYP710N_15_FUNNY}

Join our CTF Channel:

https://t.me/ctf_invisiblehc