How to Hack & Secure a Wireless Network. Friends as I have already announced before that we would be writing on Wifi attacks very soon, The series consists of three parts( May be more depending upon your feedback) and will be covered by John Jeffrey. In the first Part John explains about the very basics of Wifi Attacks and security. Before moving on to the advanced stuff such as WEP and WPA Cracking, You need to have the basic idea of how a wifi connection works. Wifi stands for Wireless Fidelity, Its a device that performs the functions of a router but also includes the functions of a wireless access point and a network switch. . make use of your neighbour's securityenabled Wifi network. How to hack a wifi network in a few minutes. because they're the least secure. To hack a WPA. Hack Wireless Network, Secure. How to Hack & Secure a Wireless Network. Friends as I have already announced before that we would be writing on Wifi. If you have your own WiFi network, it’s important you secure it from unauthorized. 40 comments on “ How to Secure Your WiFi Network. No password to hack. This video shows one method of hacking a wireless WEP connection and gives you some tips on how to better secure. How To Hack Wireless. WiFi Antenna. I hacked my secure wireless network: here’s how it’s done. By BLORGE - December 15, 2015. 738. 0. SHARE. Facebook. Twitter. tweet. WPA – WiFi Protected. They are commonly used to allow access to the Internet or a computer networks without the need for a cabled connection. Wifi is commonly used in airports , Offices etc. How Wifi Works? The working of Wifi is pretty simple to understand. The components of wireless network includes a communication device such as a laptop or a cell pone etc, a router and internet connection. The communication device which has a wireless compatibility ( laptops )converts the data in the form of radio waves and transmits it to the router, through an antenna. The router receives the signal and decodes it. The router sends the information to the Internet using a physical, wired Ethernet connection. The reverse communication follows the same ( i. Internet, translating it into a radio signals and sending it to the computer’s wireless adapter. What’s the Risk? Security is an important part of a home wireless network. Learn how attackers do to hack a Secure Wifi with powerfully. that war drivers heads would it if not impossible then extremely difficult to hack your network.. If you set your router to create an open hotspot, anyone who has a wireless card will be able to use your signal. And he/she will be able to use your internet connection . To protect and keep our internet private we can use one the following encryptions. WEPWired Equivalent Privacy (WEP) is a weak security algorithm for wireless networks. Its intention was to provide data confidentiality comparable to that of a traditional wired network. WEP, recognizable by the key of 1. Its widely in use and is often the first security choice presented to users by router configuration tools. Although its name implies that it is as secure as a wired connection, WEP has been demonstrated to have numerous flaws and has been deprecated in favor of newer standards such as WPA2. WPA And WPA 2. WPA (Wi- Fi Protected Access) and WPA2 (Wi- Fi Protected Access II ) are two security protocols for wireless networks from the Wi- Fi Alliance that was developed to provide a migration from WEP. The Alliance defined these in response to serious weaknesses researchers had found in the previous system, WEPBut these encryptions can also be broken , The following demo shows us how easy it is to crack WEP Keys. Demonstration. In this following demonstration shows us how easy it is to crack WEP keys. How to Secure Your Wireless Network. Never use WEP as your encryption type, always use WPA Or WPA 2 as your encryption type. Use strong passwords , which can not be cracked easily by using a dictionary attack or brute force attack. Always Use a Vpn when your using pubic Wifi hotspots. Hope this Information Helps You , For further doubts and clarifications please pass your comments. . how easy it is to crack a WEP password, you probably secure your network using the more. Crack a Network's WPA Password with. Hack Attack. How To. How to Secure Your Wireless Network. Comments. WPA2 have supplanted the older and less-secure Wireless Encryption. nearly impossible to hack. How to Secure Your Wireless Home Network. This article describes techniques a user can use to secure his or her 802.11b/g/n. Change the Default WiFi Network on a. How I cracked my neighbor’s WiFi password without breaking a. if you have WiFi. all to the company network. Against an actual hack attempt. You Might Also Like. How to Crack a Wi- Fi Network's WPA Password with Reaver. Your Wi- Fi network is your conveniently wireless gateway to the internet, and since you're not keen on sharing your connection with any old hooligan who happens to be walking past your home, you secure your network with a password, right? Knowing, as you might, how easy it is to crack a WEP password, you probably secure your network using the more bulletproof WPA security protocol. You already know that if you want to lock down your Wi- Fi network, you should opt for WPA…. Read more Read more. Here's the bad news: A new, free, open- source tool called Reaver exploits a security hole in wireless routers and can crack most routers' current passwords with relative ease. Here's how to crack a WPA or WPA2 password, step by step, with Reaver—and how to protect your network against Reaver attacks. In the first section of this post, I'll walk through the steps required to crack a WPA password using Reaver. You can follow along with either the video or the text below. After that, I'll explain how Reaver works, and what you can do to protect your network against Reaver attacks. First, a quick note: As we remind often remind readers when we discuss topics that appear potentially malicious: Knowledge is power, but power doesn't mean you should be a jerk, or do anything illegal. Knowing how to pick a lock doesn't make you a thief. Consider this post educational, or a proof- of- concept intellectual exercise. The more you know, the better you can protect yourself. What You'll Need. You don't have to be a networking wizard to use Reaver, the command- line tool that does the heavy lifting, and if you've got a blank DVD, a computer with compatible Wi- Fi, and a few hours on your hands, you've got basically all you'll need. There are a number of ways you could set up Reaver, but here are the specific requirements for this guide: The Back. Track 5 Live DVD. Back. Track is a bootable Linux distribution that's filled to the brim with network testing tools, and while it's not strictly required to use Reaver, it's the easiest approach for most users. Download the Live DVD from Back. Track's download page and burn it to a DVD. You can alternately download a virtual machine image if you're using VMware, but if you don't know what VMware is, just stick with the Live DVD. As of this writing, that means you should select Back. Track 5 R3 from the Release drop- down, select Gnome, 3. CPU (if you don't know which you have, 3. ISO for image, and then download the ISO. A computer with Wi- Fi and a DVD drive. Back. Track will work with the wireless card on most laptops, so chances are your laptop will work fine. However, Back. Track doesn't have a full compatibility list, so no guarantees. You'll also need a DVD drive, since that's how you'll boot into Back. Track. I used a six- year- old Mac. Book Pro. A nearby WPA- secured Wi- Fi network. Technically, it will need to be a network using WPA security with the WPS feature enabled. I'll explain in more detail in the "How Reaver Works" section how WPS creates the security hole that makes WPA cracking possible. A little patience. This is a 4- step process, and while it's not terribly difficult to crack a WPA password with Reaver, it's a brute- force attack, which means your computer will be testing a number of different combinations of cracks on your router before it finds the right one. When I tested it, Reaver took roughly 2. The Reaver home page suggests it can take anywhere from 4- 1. Your mileage may vary. Let's Get Crackin'At this point you should have Back. Track burned to a DVD, and you should have your laptop handy. Step 1: Boot into Back. Track. To boot into Back. Track, just put the DVD in your drive and boot your machine from the disc. Google around if you don't know anything about live CDs/DVDs and need help with this part.) During the boot process, Back. Track will prompt you to to choose the boot mode. Select "Back. Track Text - Default Boot Text Mode" and press Enter. Eventually Back. Track will boot to a command line prompt. When you've reached the prompt, type startx and press Enter. Back. Track will boot into its graphical interface. Step 2: Install Reaver. Update: This step is no longer necessary, as Reaver comes pre- installed on Backtrack 5 R3. Skip down to Step 3. Reaver has been added to the bleeding edge version of Back. Track, but it's not yet incorporated with the live DVD, so as of this writing, you need to install Reaver before proceeding. Eventually, Reaver will simply be incorporated with Back. Track by default.) To install Reaver, you'll first need to connect to a Wi- Fi network that you have the password to. Click Applications > Internet > Wicd Network Manager. Select your network and click Connect, enter your password if necessary, click OK, and then click Connect a second time. Now that you're online, let's install Reaver. Click the Terminal button in the menu bar (or click Applications > Accessories > Terminal). At the prompt, type: apt- get update. And then, after the update completes: apt- get install reaver. If all went well, Reaver should now be installed. It may seem a little lame that you need to connect to a network to do this, but it will remain installed until you reboot your computer. At this point, go ahead and disconnect from the network by opening Wicd Network Manager again and clicking Disconnect. You may not strictly need to do this. I did just because it felt like I was somehow cheating if I were already connected to a network.)Step 3: Gather Your Device Information, Prep Your Crackin'In order to use Reaver, you need to get your wireless card's interface name, the BSSID of the router you're attempting to crack (the BSSID is a unique series of letters and numbers that identifies a router), and you need to make sure your wireless card is in monitor mode. So let's do all that. Find your wireless card: Inside Terminal, type: iwconfig. Press Enter. You should see a wireless device in the subsequent list. Most likely, it'll be named wlan. Put your wireless card into monitor mode: Assuming your wireless card's interface name iswlan. This command will output the name of monitor mode interface, which you'll also want to make note of. Most likely, it'll be mon. Make note of that. Find the BSSID of the router you want to crack: Lastly, you need to get the unique identifier of the router you're attempting to crack so that you can point Reaver in the right direction. To do this, execute the following command: airodump- ng wlan. Note: If airodump- ng wlan. You'll see a list of the wireless networks in range—it'll look something like the screenshot below: When you see the network you want, press Ctrl+C to stop the list from refreshing, then copy that network's BSSID (it's the series of letters, numbers, and colons on the far left). The network should have WPA or WPA2 listed under the ENC column. If it's WEP, use our previous guide to cracking WEP passwords.)Now, with the BSSID and monitor interface name in hand, you've got everything you need to start up Reaver. Step 4: Crack a Network's WPA Password with Reaver. Now execute the following command in the Terminal, replacing bssid and moninterface with the BSSID and monitor interface and you copied down above: reaver - i moninterface - b bssid - vv. For example, if your monitor interface was mon. BSSID was 8. D: AE: 9. D: 6. 5: 1. F: B2 (a BSSID I just made up), your command would look like: reaver - i mon. D: AE: 9. D: 6. 5: 1. F: B2 - vv. Press Enter, sit back, and let Reaver work its disturbing magic. Reaver will now try a series of PINs on the router in a brute force attack, one after another. This will take a while. In my successful test, Reaver took 2 hours and 3. As mentioned above, the Reaver documentation says it can take between 4 and 1. I experienced, depending. When Reaver's cracking has completed, it'll look like this: A few important factors to consider: Reaver worked exactly as advertised in my test, but it won't necessarily work on all routers (see more below). Also, the router you're cracking needs to have a relatively strong signal, so if you're hardly in range of a router, you'll likely experience problems, and Reaver may not work. Throughout the process, Reaver would sometimes experience a timeout, sometimes get locked in a loop trying the same PIN repeatedly, and so on. I just let it keep on running, and kept it close to the router, and eventually it worked its way through. Also of note, you can also pause your progress at any time by pressing Ctrl+C while Reaver is running. This will quit the process, but Reaver will save any progress so that next time you run the command, you can pick up where you left off- as long as you don't shut down your computer (which, if you're running off a live DVD, will reset everything). How Reaver Works. Now that you've seen how to use Reaver, let's take a quick overview of how Reaver works. The tool takes advantage of a vulnerability in something called Wi- Fi Protected Setup, or WPS. It's a feature that exists on many routers, intended to provide an easy setup process, and it's tied to a PIN that's hard- coded into the device. Reaver exploits a flaw in these PINs; the result is that, with enough time, it can reveal your WPA or WPA2 password. Read more details about the vulnerability at Sean Gallagher's excellent post on Ars Technica. How to Protect Yourself Against Reaver Attacks. Since the vulnerability lies in the implementation of WPS, your network should be safe if you can simply turn off WPS (or, even better, if your router doesn't support it in the first place). Unfortunately, as Gallagher points out as Ars, even with WPS manually turned off through his router's settings, Reaver was still able to crack his password. In a phone conversation, Craig Heffner said that the inability to shut this vulnerability down is widespread. He and others have found it to occur with every Linksys and Cisco Valet wireless access point they've tested.
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