WEBVTT 00:01.080 --> 00:01.360 Okay. 00:01.400 --> 00:05.120 In the previous lecture, we refactored the listener. 00:05.160 --> 00:07.160 Now it is time to refactor the backdoor. 00:07.200 --> 00:07.600 Okay. 00:08.680 --> 00:16.800 And I mean by refactoring to create a class and put them into functions or methods. 00:16.840 --> 00:17.640 Okay. 00:17.640 --> 00:21.360 So let's create a class I'm going to name this class backdoor. 00:23.720 --> 00:31.520 And here as you see this part is responsible for uh this. 00:31.800 --> 00:34.480 So here we need to create a constructor. 00:34.560 --> 00:36.840 So let's use init. 00:37.920 --> 00:43.080 And we don't need this part here. 00:43.320 --> 00:44.440 Let's use. 00:47.160 --> 00:47.720 Uh okay. 00:47.760 --> 00:49.000 Later we can use it. 00:49.200 --> 00:51.080 Let me paste this here. 00:51.880 --> 00:54.600 Now hit tab twice. 00:55.160 --> 00:57.080 As you see here we have two argument. 00:57.080 --> 00:58.560 One of them is port. 00:58.560 --> 01:03.520 And also we have the other thing which is uh IP and port. 01:03.560 --> 01:03.760 Okay. 01:03.760 --> 01:04.400 This is the IP. 01:04.400 --> 01:05.760 The other one is port. 01:05.800 --> 01:09.920 So let's provide IP and port. 01:11.890 --> 01:13.370 So perfect. 01:13.410 --> 01:20.930 Now, instead of using this here, I need to just write IP and port. 01:22.330 --> 01:22.850 Okay. 01:23.730 --> 01:25.530 And also this one. 01:25.650 --> 01:31.530 Now it is, uh, part of the class, so I need to hit a tab here. 01:32.010 --> 01:35.650 So it became part of this class. 01:35.890 --> 01:44.890 And also for this we need to create a function because this part is responsible for running the command. 01:44.930 --> 01:45.210 Okay. 01:45.250 --> 01:49.050 System command for receiving and sending command. 01:49.130 --> 01:52.050 So let's create a function. 01:52.090 --> 01:59.490 I'm going to name it run here paste it and hit tab twice. 02:01.490 --> 02:06.330 And as you see some of these are not uh have some error. 02:06.370 --> 02:07.050 Okay. 02:07.050 --> 02:10.170 So that is because self keyboard. 02:10.210 --> 02:12.410 The first thing is here the connection. 02:12.410 --> 02:20.210 While we are using connection we need to add this self keyword here at the beginning because we are 02:20.210 --> 02:24.790 using this self in other function as well. 02:24.790 --> 02:28.110 And also we need to add a self keyword here. 02:28.390 --> 02:28.830 Okay. 02:29.630 --> 02:32.830 And also we have the self here right. 02:32.870 --> 02:39.870 Now we need to add self dot connection there and also self dot execute system command. 02:40.230 --> 02:44.230 And we have self dot connection. 02:44.510 --> 02:45.150 Perfect. 02:45.390 --> 02:46.590 Now it is good. 02:46.750 --> 02:50.670 But still we need to create an instance from this. 02:52.230 --> 02:53.430 Let me collapse this. 02:54.030 --> 02:56.710 Let me before collapsing let me hit some. 02:58.150 --> 02:58.990 Enter here. 02:59.030 --> 03:01.910 Okay I do have enter now. 03:02.510 --> 03:02.830 Okay. 03:03.590 --> 03:10.990 So I'm going to create this object by the name of my backdoor. 03:12.990 --> 03:16.070 So this is my backdoor is equal to. 03:20.070 --> 03:21.310 Backdoor class. 03:22.750 --> 03:29.590 And as you see it is asking for cheating because in constructor we add an IP and also a port. 03:29.630 --> 03:39.400 So the IP is ten 024 because the color Kali Linux IP address is four and the port is going to be four, 03:39.400 --> 03:40.200 four, four. 03:41.240 --> 03:46.960 And now I'm going to go use the run method. 03:47.000 --> 03:47.720 Okay. 03:47.720 --> 03:49.360 Now I'm going to save this okay. 03:49.400 --> 03:50.960 I did save that. 03:51.320 --> 03:55.520 And now let's come back here into Kali machine. 03:55.560 --> 03:56.880 Execute the listener. 03:56.920 --> 03:58.720 Right now it is listening okay. 03:59.200 --> 04:01.480 And let's come back here. 04:01.520 --> 04:08.320 Try to run this program to see what is going to be happening. 04:08.920 --> 04:11.280 So the connection is happened. 04:11.320 --> 04:12.520 Okay, we got a connection. 04:12.520 --> 04:17.200 Now let's execute the Dir command. 04:17.200 --> 04:18.280 You see, it is working. 04:18.560 --> 04:22.960 If I use ipconfig who am I? 04:24.120 --> 04:25.200 And it is working. 04:25.240 --> 04:27.800 Okay so we did not break the program. 04:28.080 --> 04:28.760 Perfect. 04:28.800 --> 04:30.400 Now the code. 04:30.440 --> 04:34.400 It looks more beautiful okay. 04:34.440 --> 04:35.800 In both sides. 04:35.840 --> 04:36.600 Listener. 04:36.600 --> 04:38.600 And also the other part. 04:38.640 --> 04:45.440 So now that it is completed, it is time to go add some more functionality to the back door. 04:45.480 --> 04:45.920 Okay.