Root@kali:# airmon-ngInterface Chipset DriverNo wireless adapter is detected! There is nothing wrong with your installation of VMWare or VM. So, if you encounter this problem, do not waste time on the VMWare network settings. It can be NAT or Bridged, does not matter. The default network interface you see in the VM is a virtual Ethernet interface, which is connected to the physical wireless adapter over a bridge.
However, the VM has no control of or the visibility to the physical wireless adapter. Hence, airmon-ng does not return anything. There is nothing you can do to bring those network adapters appear when you run the airmon-ng command.Nevertheless, a VM within VMWare is able to gain control of a USB wireless adapter and be put into monitor mode. You need to install the adapter driver into the Kali Linux VM, though, and make sure the adapter is supported by Kali Linux. In this case, please follow the hardware installation guide supplied by the vendor, which is not covered here.If you have an adapter that only has Windows drivers, make sure the driver is supported by ndiswrapper (please google by yourself). Kali Linux is not bundled with ndiswrapper, therefore, you have to install ndiswrapper first.
Then, use ndiswrapper to install the windows drivers into Kali Linux.Installing ndiswrapper into Kali LinuxFirst, download ndiswrapper from sourceforge.net. The file name is somthing like ndiswrapper-1.59.tar.gz.After the download, unzip it.
We’ve managed to test up to 8 wireless network adapters (6 USB + 2 internal) on BackTrack 5 to determine the signal strength of each device using the command “airodump-ng mon0” after putting the adapter in monitor mode. Obviously the adapter that detects the most access points with lowest signal level (PWR) deserves to be crowned as the best compatible USB wireless adapter for BackTrack 5.1.You’ll find that Alfa AWUS036H is the most recommended USB wireless network adapter because it is very stable and works right out of the box for BackTrack 5. If you don’t mind paying the extra premium price for an adapter with no support for 802.11n wireless standard, then it is quite a good choice. Because Alfa AWUS036H is so popular, there are counterfeit versions being sold online. We recommend you directly if you’re looking for an authorized local distributor.2.The AWUS036NHR is currently the most powerful wireless adapter by Alfa with very good signal strength.
It may seem to be plug and play in BackTrack 5 because you can put it in monitor mode and passes the injection test, but unfortunately it is very unstable because the chipset is not recognized in BackTrack 5 R3.3.TL-WN722N is a cheaper alternative to the Alfa AWUS036NHA which uses the Atheros AR9271 chipset. It is claimed to be high gain and comes with a 4dBi detachable antenna where you can upgrade to a more powerful antenna to achieve better signal. Although this product was released back in 2009, it is still listed in TP-LINK’s official website and can be easily purchased from many sources on the Internet.
There is another very similar model which is the TL-WN722NC. It is exactly the same as TL-WN722N except it comes with an additional cradle.4.ASUS USB-N53 uses Ralink RT3572 chipset and is fully compatible with BackTrack 5 but is not recommended due to the poor performance.5.This USB wireless network adapter uses the same chipset as ASUS USB-N53 which is Ralink RT3572 and has been discontinued.
If you check the results at the end of this post, you’d notice that the performance of this adapter with the USB-N53 is very similar.6.This adapter is the oldest in the list and it is no surprise that it performed badly on the test. Comparing with the best adapter, DWA-110 merely detected 3 out of 9 access points.7. DELL 1510Although it seems to have better performance that some of the external USB wireless adapters, only monitor mode works but not injection due to the Broadcom chipset.8.
Intel 5100Interestingly the Intel 5100 did quite well and the performance is comparable to the TL-WN722N. However do note that the TL-WN722N uses a 4dBi antenna in this test which can be upgraded to a better one to achieve better signal strength. Both monitor mode and packet injection works perfectly.Results and SummaryThe result table below shows the number of access points the adapters can detect and also the lowest signal level.Summary: Although AWUS036NHR is the successor of the popular AWUS036H which has better signal strength, unfortunately it is currently not supported on BackTrack 5. Alfa AWUS036H is still the best choice, followed by TP-LINK TL-WN722N especially if you can get a higher dBi antenna. There is no harm trying out your internal card to see if it works on BackTrack 5 but take note that internal cards will only work on Live CD/USB but not on virtual machine such as VirtualBox/VMware.
With the imminent arrival of Kali 2.0, hopefully compatibility will increase a little. My ALFA AWUS036NEH has drifted into and out of compatibility when customising transmit power to Bolivian Regulatory Domain (30dBm 1000mW). That doesn’t mean it’s a bad WiFi Adapter, it just means that support on the OS level might not nessisarily be 100% for that particular model adapter. Everything else still works fine like; Internet Connectivity, Packet Injection & Promiscuous Mode.
Hopefully my woes are sorted out on August 11th! (Kali 2.0 Release Date). First, I have a small factual correction to make for this article — the RT3070 chipset is made by Ralink, not Realtek. And it’s a very good chipset.I have the RT3070 chipset in my Alfa UBDo external wifi adapter and it works excellent with 2000 mW power and covers the N protocol as well. But the UBDo is an omni-directional antenna and my attempts to get into my local city’s public wifi system were marginal (sometimes yes, for a little while, and sometimes no).So I bought an Alfa AWUS036NHR and an 18 dBi yagi antenna.
The NHR model uses the Realtek 8188ru chipset (and the rtl8192cu driver in Linux). The unit functions perfectly good with Windows XP.
So I know there’s no physical problem with the unit, and I know that the Windows driver works correctly in normal client usage. But there are lots of problems using this under Linux.Under Linux the monitor mode won’t support channel changing. It’s stuck on channel 1. So Kismet (my packet sniffer) won’t work correctly. I don’t know about injecting packets since I’ve never tried that.Even under normal client usage mode it won’t lock up on APs that are fairly strong and steady under Windows. It acts like it’s always on low power or something. The Realtek utility software in Windows has a selection box for three power modes.
I haven’t found any commands to access those modes in Linux yet, if the driver even supports power changing.I have searched the net and downloaded the newest drivers with patches that I could find. The latest mod date that I’ve tried is Feb 2013. And it still doesn’t make any difference. I might have to buy another adapter and keep this one around until someone gets the Realtek 8192cu driver situation figured out for the 8188ru chipset. Yes its an amazing adapter. After looking for it all over India for 3 months or so I finally mailed Alfa’s sales team in Taiwan asking for a dealer in India.
That’s how I finally got it from the only dealer in India and that too he said he was selling to an individual for the first time and that he has never got an adapter returned since the first started dealing in them 2 years ago. The ones selling on Ebay are expensive according to me. I got it for INR 1700 (USD 39) inclusive of domestic shipping. The package had1) The main adapter2) 5dBi antenna3) USB cable4) Drivers mini CDMany people recommend buying an Alfa 9dBi antenna but I feel the 5dBi antenna is more than sufficient. And yes it works beautifully with Backtrack 5, Windows 7 SP1 and Mac OS X Snow Leopard.