CTF Tool

1. Steganography

Stegsolve

java -jar stegsolve.jar

Steghide

steghide --extract -sf image.jpg

Hexeditor

Online - https://hexed.it/

hexeditor <file.extension>

RAR

unrar e flag.zip

ZIP

unzip file.zip

Aperisolve

• Extract and check on file (jpg/png/pdf)

https://www.aperisolve.com/

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2. Cryptography

Cyber Chef

https://gchq.github.io/CyberChef/

Cipher Identifier

Magic in Cyber Chef

Dcode Cipher Identifier - https://www.dcode.fr/cipher-identifier

Decode

Base64

base64 -d <<<"base64_encoded_string"

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3. Web

Browser

• Robots.txt

• Inspect

• View-source

Burp Suite

• Proxy

• Repeater

• Decoder

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4. OSINT

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5. Forensic

Crack

ZIP file

zip2john file.rar > hash.txt

RAR file

rar2john file.rar > hash.txt

John Crack

john --wordlist=rockyou.txt hash.txt

Hashcat

hashcat -m 13000 hash.txt -a 0 rockyou.txt

mode reference:

https://hashcat.net/wiki/doku.php?id=example_hashes

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6. Misc

Audacity

Install (Windows/MacOS/Linux) - https://www.audacityteam.org/download/

Online - https://wavacity.com/

Sonic Visualiser

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7. Reverse Eng

oletools

https://github.com/decalage2/oletools

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8. Linux

Find

• To find a file

• "–name" --> look for files with that name

find –name file.txt

• Case sensitive

• "–iname" --> gnore Case sensitive

find –iname “name_of_file”

XXD

xxd file.png | head

xxd file.png | tail

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9. Binary