Airmon-ng gives me no interface (BT5 installed on SSD)

[t3hpwnage]

I used to have BT4 installed on this computer and I used it to do a variety of shenanigans such crack WEP keys, obtain WPA handshakes, and deauthenticate my friends during Counter-Strike games at LAN parties (their confusion was priceless). When BT5-R1 came out I decided to install it to replace BT4. Everything went well, and I had the chance to use it to crack a couple of WEP keys. I used airmon, aireplay, and aircrack with no problem. Then I bought a Solid State Drive for my laptop and replaced my old HDD with it. I have Windows and BT5-R1 installed right now, but airmon does not work anymore! Besides the new SSD, there have been no hardware changes in my laptop, and I really doubt that the SSD could be causing this trouble. I tried running BT5 from a USB flash drive and I experience the same symptoms - no interfaces:

root@bt:~# airmon-ng

Interface               Chipset               Driver

I can connect to the internet without any trouble, and this is what iwconfig gives me

root@bt:~# iwconfig

lo        no wireless extensions.

eth0      no wireless extensions.

wlan0     IEEE 802.11abgn  ESSID:"NETGEAR-24-G"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: C0:3F:0E:7D:AB:6E   
          Bit Rate=104 Mb/s   Tx-Power=15 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=70/70  Signal level=-33 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0

This is what ifconfig gives:

root@bt:~# ifconfig
eth0      Link encap:Ethernet  HWaddr 64:31:50:86:83:20  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:42 Base address:0x6000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:186 errors:0 dropped:0 overruns:0 frame:0
          TX packets:186 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:24581 (24.5 KB)  TX bytes:24581 (24.5 KB)

wlan0     Link encap:Ethernet  HWaddr 00:27:10:d0:ec:5c  
          inet addr:192.168.1.10  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::227:10ff:fed0:ec5c/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:5249 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2557 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:4950472 (4.9 MB)  TX bytes:454735 (454.7 KB)

Like I said, I've done this procedure before on this very same laptop, so I know all the steps (not doing anything different in that aspect), my card is capable of injection, etc...

What could be causing this problem, and how can I fix it?

[Snayler]

Try putting wlan0 into monitor mode manually:

ifconfig wlan0 down && iwconfig wlan0 mode monitor && ifconfig wlan0 up

Also, read some threads from the "Similar Threads" section (bottom of this page) to see if you can find a fix for airmon-ng.

[Stallh0f3n]

What wlan card are you using? Maybe you haven't installed the right drivers yet.
I was facing the same kind of problem with my new wlan card some days ago.

[t3hpwnage]

Thank you for the replies guys. I was able to solve my problem by using the following solution:

Hi, guys,

The problem as only in airmon-ng, everything else was fine.

This fix did the trick:




The link to the solution was here http://forum.aircrack-ng.org/index.php?topic=12380.0 , but this seems to be down at the moment.

Thank you!

Note that this was for BT5 R1

[t3hpwnage]

^Sorry the fix quoted above was:

cp /usr/local/sbin/airmon-ng /usr/local/sbin/airmon-ng-BAK && sed 's/| grep Link |/| grep iwlagn |/g' /usr/local/sbin/airmon-ng-BAK>/usr/local/sbin/airmon-ng