landoncrabtree/ctfer

A Python Discord Bot (using Pycord) to assist with common capture the flag (CTF) tasks.

CTF Bot

A Discord bot to help assist with common CTF tasks.

Features

• Ciphers
  • Caesar Bruteforce
  • ATBASH
• ROT47, ROT8000, ROT80000
• Encodings
  • Binary
  • Octal
  • Decimal
  • Hexadecimal
  • Base32, Base58, Base64, Base85, Base91
  • Morse Code
  • URL Encoding
  • ASCII Table & Lookup
• Hashes
  • MD5
  • SHA1
  • SHA256
  • SHA512
• Images
  • OCR
• Files
  • Strings
  • Hexdump
  • Metadata (EXIF)
  • .pyc Decompiler
• Strings
  • Count character occurrences
  • Count number of words
  • Count number of characters
  • Replace characters
• Magic - Automatically try different ciphers & encodings
• Slash Command Support

Usage

Setting up the repository

git clone
cd ctfer
python3 -m venv venv
source venv/bin/activate
pip install -r requirements.txt

Configuring the bot

cp .env.sample .env
nano .env

Installing other dependencies

Make sure you have the binaries in your PATH

Dependency	Purpose
Tesseract	OCR Command
Decompyle++	.pyc Decompiler

Running the bot

python3 main.py

Commands

Ciphers

• /caesar
• /atbash
• /rot47
• /rot8000
• /rot80000

Encodings

• /binary [encode|decode]
• /octal [encode|decode]
• /decimal [encode|decode]
• /hexadecimal [encode|decode]
• /base32 [encode|decode]
• /base58 [encode|decode]
• /base64 [encode|decode]
• /base85 [encode|decode]
• /base91 [encode|decode]
• /morse [encode|decode]
• /url [encode|decode]
• /ascii_table
• /ascii_lookup

Hashes

• /md5
• /sha1
• /sha256
• /sha512

Images

• /ocr

Files

• /strings []
• /exif []
• /hexdump
• /pyc

Strings

• /occurrences
• /words
• /characters
• /replace <old_string> <new_string>

Magic

• /crackme