Would you like to inspect the original subtitles? These are the user uploaded subtitles that are being translated: 1 1 00:00:01,210 --> 00:00:03,640 Now that we have enabled monitor mode 2 2 00:00:03,640 --> 00:00:06,150 on our wireless interface, 3 3 00:00:06,150 --> 00:00:09,556 we are able to capture all the wifi packets 4 4 00:00:09,556 --> 00:00:12,680 sent within our range, 5 5 00:00:12,680 --> 00:00:16,390 even if the packet is not directed to our computer, 6 6 00:00:16,390 --> 00:00:20,020 even if we're not connected to the target network, 7 7 00:00:20,020 --> 00:00:22,690 and even without knowing the key 8 8 00:00:22,690 --> 00:00:25,800 or the password to the target network. 9 9 00:00:25,800 --> 00:00:28,810 So all we need right now is a program 10 10 00:00:28,810 --> 00:00:32,000 that can capture these packets for us. 11 11 00:00:32,000 --> 00:00:36,240 The program that we're going to use is called Airodump-NG. 12 12 00:00:36,240 --> 00:00:39,340 It's part of the Aircrack-NG suit, 13 13 00:00:39,340 --> 00:00:41,040 and it's a packet-sniffer, 14 14 00:00:41,040 --> 00:00:43,470 so it's basically a program designed 15 15 00:00:43,470 --> 00:00:47,270 to capture packets while you're in monitor mode. 16 16 00:00:47,270 --> 00:00:48,860 So it will allow us to see 17 17 00:00:48,860 --> 00:00:51,530 all the wireless networks around us, 18 18 00:00:51,530 --> 00:00:55,660 and show us detailed information about it's MAC address, 19 19 00:00:55,660 --> 00:00:57,990 it's channel, it's encryption, 20 20 00:00:57,990 --> 00:01:02,253 the clients connected to this network, and so on. 21 21 00:01:03,360 --> 00:01:06,240 So, let me show you how we're gonna use it. 22 22 00:01:06,240 --> 00:01:09,420 First of all, you need to enable monitor mode 23 23 00:01:09,420 --> 00:01:13,593 on your wireless adapter, as shown in the previous lectures. 24 24 00:01:14,780 --> 00:01:19,490 So, if I go to my Kali machine, and run iwconfig 25 25 00:01:19,490 --> 00:01:23,233 to list all the wireless devices on this computer, 26 26 00:01:24,160 --> 00:01:27,410 you'll see that I have an interface called mon0, 27 27 00:01:27,410 --> 00:01:31,173 and this interface is in monitor mode. 28 28 00:01:32,240 --> 00:01:35,500 Now dependent on the way that you enabled monitor mode, 29 29 00:01:35,500 --> 00:01:40,200 this can be called lan0, it can be called lan0mon, 30 30 00:01:40,200 --> 00:01:41,640 it doesn't really matter. 31 31 00:01:41,640 --> 00:01:44,160 You just wanna make sure you enable monitor mode 32 32 00:01:44,160 --> 00:01:46,560 using one of the methods shown before, 33 33 00:01:46,560 --> 00:01:48,960 and then, use the name of the adapter 34 34 00:01:48,960 --> 00:01:52,363 that is in monitor mode when you run Airodump-NG. 35 35 00:01:53,930 --> 00:01:55,790 Now to run Airodump-NG, 36 36 00:01:55,790 --> 00:01:57,900 we're just gonna type the name of the program, 37 37 00:01:57,900 --> 00:01:59,183 which is airodump-ng, 38 38 00:02:00,720 --> 00:02:03,680 followed by the name of my wireless adapter 39 39 00:02:03,680 --> 00:02:08,680 in monitor mode, which is mon0, as you can see in here. 40 40 00:02:09,770 --> 00:02:11,150 So the command is very simple. 41 41 00:02:11,150 --> 00:02:14,650 We're typing the program name, which is airodump-ng, 42 42 00:02:14,650 --> 00:02:17,990 followed by the name of my interface in monitor mode. 43 43 00:02:17,990 --> 00:02:21,500 If I hit Enter, you'll see it'll start working, 44 44 00:02:21,500 --> 00:02:24,960 discovering all the wireless networks around me, 45 45 00:02:24,960 --> 00:02:28,063 and displaying useful information about them. 46 46 00:02:29,870 --> 00:02:33,310 This program will continue working unless you quit it, 47 47 00:02:33,310 --> 00:02:34,790 and to quit this program, 48 48 00:02:34,790 --> 00:02:37,993 you have to press Control+C from your keyboard. 49 49 00:02:38,870 --> 00:02:41,040 You can actually use Control+C 50 50 00:02:41,040 --> 00:02:44,023 to quit any running program in your terminal. 51 51 00:02:44,910 --> 00:02:48,390 Now that we stopped the program, let's analyze the output 52 52 00:02:48,390 --> 00:02:51,283 so we understand what it's showing us. 53 53 00:02:52,190 --> 00:02:54,390 So first of all, if we look at this column, 54 54 00:02:54,390 --> 00:02:58,930 the ESSID column, it should be a little bit familiar to you, 55 55 00:02:58,930 --> 00:03:00,720 and basically this shows us 56 56 00:03:00,720 --> 00:03:04,353 the names of the wireless networks around us. 57 57 00:03:05,390 --> 00:03:07,460 So if I just go to my Mac machine 58 58 00:03:07,460 --> 00:03:09,750 and look for wireless networks, 59 59 00:03:09,750 --> 00:03:12,830 you'll see the same names that we see in here 60 60 00:03:12,830 --> 00:03:16,093 displayed under the ESSID. 61 61 00:03:17,660 --> 00:03:20,920 Now all of the other columns show us more information 62 62 00:03:20,920 --> 00:03:23,560 about the network name that you see in here, 63 63 00:03:23,560 --> 00:03:26,980 and this information will actually be very useful to us 64 64 00:03:26,980 --> 00:03:28,973 as we go through the course. 65 65 00:03:30,320 --> 00:03:32,630 The first column, the BSSID, 66 66 00:03:32,630 --> 00:03:36,043 shows us the MAC address of the target network. 67 67 00:03:37,250 --> 00:03:39,760 Next, we have the PwR. 68 68 00:03:39,760 --> 00:03:43,350 So this is the signal strength, or the power, 69 69 00:03:43,350 --> 00:03:44,483 of the network. 70 70 00:03:45,510 --> 00:03:48,660 Now the higher the number, the better signal we have. 71 71 00:03:48,660 --> 00:03:52,430 So for example, the network with the best signal right here 72 72 00:03:52,430 --> 00:03:53,443 is this one. 73 73 00:03:55,270 --> 00:03:57,690 Next, we have the beacons. 74 74 00:03:57,690 --> 00:04:01,520 These are frames, sent by the network 75 75 00:04:01,520 --> 00:04:04,580 in order to broadcast it's existence. 76 76 00:04:04,580 --> 00:04:07,510 So every network, even if it's set to be hidden, 77 77 00:04:07,510 --> 00:04:10,360 always sends these type of frames, 78 78 00:04:10,360 --> 00:04:13,320 basically broadcasting it's existence, 79 79 00:04:13,320 --> 00:04:16,620 and telling all the wireless devices around it 80 80 00:04:16,620 --> 00:04:19,497 that "I exist, I have this BSSID. 81 81 00:04:19,497 --> 00:04:22,797 "I work on this channel, I use this encryption, 82 82 00:04:22,797 --> 00:04:24,747 "and my name is this." 83 83 00:04:26,520 --> 00:04:30,790 Next, we have the number of data packets, or data frames, 84 84 00:04:30,790 --> 00:04:32,670 and these are the useful packets 85 85 00:04:32,670 --> 00:04:34,810 that we'll talk about later on, 86 86 00:04:34,810 --> 00:04:37,323 once we get to the cracking section. 87 87 00:04:38,430 --> 00:04:41,480 This column represents the number of data packets 88 88 00:04:41,480 --> 00:04:44,323 that we collected in the past 10 seconds. 89 89 00:04:45,330 --> 00:04:46,900 Next we have the channel, 90 90 00:04:46,900 --> 00:04:50,190 which is the channel that the network works on. 91 91 00:04:50,190 --> 00:04:53,540 So for example, this network right here, the Test AP, 92 92 00:04:53,540 --> 00:04:55,330 works on channel 6. 93 93 00:04:55,330 --> 00:04:58,543 This network works on channel 1, and so on. 94 94 00:04:59,910 --> 00:05:04,803 Next, we have the maximum speed supported by the network. 95 95 00:05:05,720 --> 00:05:09,060 The encryption is a very important column, 96 96 00:05:09,060 --> 00:05:13,610 and it shows us the encryption used by the network. 97 97 00:05:13,610 --> 00:05:17,700 So we can see that the Test AP network is using WPA. 98 98 00:05:17,700 --> 00:05:20,820 We can see we have a network that uses WEP. 99 99 00:05:20,820 --> 00:05:24,450 We can see this network right here is an open network, 100 100 00:05:24,450 --> 00:05:25,920 so it doesn't use encryption. 101 101 00:05:25,920 --> 00:05:29,350 We don't even need a password to connect to it. 102 102 00:05:29,350 --> 00:05:33,103 And we can see we have a WPA2 network right here. 103 103 00:05:34,680 --> 00:05:38,270 CIPHER is the cipher used in the network. 104 104 00:05:38,270 --> 00:05:42,370 So we can see here we have CCMP, we have WEP, 105 105 00:05:42,370 --> 00:05:44,673 and we have CCMP again here. 106 106 00:05:45,612 --> 00:05:48,830 AUTH is the authentication used on that network, 107 107 00:05:48,830 --> 00:05:52,730 and in here we can see it's PSK, Pre-Shared Key, 108 108 00:05:52,730 --> 00:05:55,640 and MGT for this network. 109 109 00:05:55,640 --> 00:05:59,440 Now don't worry about the ENC, the CIPHER and the AUTH. 110 110 00:05:59,440 --> 00:06:02,770 We will talk about breaking into all these networks, 111 111 00:06:02,770 --> 00:06:05,710 into WEP, WPA, and WPA2, 112 112 00:06:05,710 --> 00:06:08,303 in the gaining access section. 113 113 00:06:09,600 --> 00:06:13,050 And finally, you can see we have the ESSID section, 114 114 00:06:13,050 --> 00:06:16,170 which shows the name of the network. 115 115 00:06:16,170 --> 00:06:19,090 So this is what you see when you look for networks 116 116 00:06:19,090 --> 00:06:20,563 in your network manager. 117 117 00:06:21,720 --> 00:06:23,210 So that's it for this lecture. 118 118 00:06:23,210 --> 00:06:25,260 I just wanted to give you a quick look 119 119 00:06:25,260 --> 00:06:27,980 on how to discover all the networks around us 120 120 00:06:27,980 --> 00:06:29,183 using Airodump-NG. 121 121 00:06:30,070 --> 00:06:32,700 Don't worry about Airodump-NG too much now. 122 122 00:06:32,700 --> 00:06:35,790 We're gonna be using it a lot in the next lectures, 123 123 00:06:35,790 --> 00:06:38,230 and you'll get very comfortable with using it 124 124 00:06:38,230 --> 00:06:40,013 as we go through the course. 10893