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Thread: Issue: ALFA AWUS036H WPA Handshake!

  1. #1
    Member
    Join Date
    Jan 2010
    Posts
    102

    Default Issue: ALFA AWUS036H WPA Handshake!

    I havent tried the Pre-Built VM Download yet with this because of the lag issue with it, but no doubt it will probably work because ive noticed a lot of differences between the ISO & The Downloadable VM

    Specs
    VMware 7.0, Downloaded the ISO Image and created my VM
    Dell Laptop Latitude D620 512mb Ram | 30GB HD | Dual Core 1.8Ghz
    Also tied my PC 4GB Ram | 1TB HD | Dual Core 2.8Ghz

    My VM actually works better by the way on my laptop... which is weird.

    Info
    This device will not capture a WPA Handshake or Deauth properly.

    Tested my rt73 TP-Link TL-WN321G & It works perfectly for Deauth & WPA Handshake Capture

    Ive done the same steps for both my TP-Link & My ALFA

    Code:
    ifconfig wlan0 down
    iwconfig wlan0 mode monitor
    ifconfig wlan0 up
    airodump-ng wlan0
    airodump-ng -c 11 -w test --bssid bssid wlan0
    aireplay-ng --deauth 5 -a AP MAC -c Client MAC wlan0
    The ALFA will only Deauth if you use the --deauth 0 switch to make it indefinate but still wont capture the Handshake as the client re-authenticates. With rt73 you only need 5 max to deauth and as soon as you refresh a page it captures the WPA Handshake.

    BT4 Final ISO comes with the mac80211 drivers and aparantly they are not as stable as ieee80211

    Now from what ive read the BT4 Pre-Built Downloadable VM Image must be using ieee80211 because i can change power settings under iwpriv were as on the ISO i cannot.

    And on the Pre-Built VM Image i have cracked WEP, so injection is fine on that... im wondering if this is the case should i blacklist mac80211 & go with ieee80211

    I hope i can move forward with this, because i just bought the ALFA Card =P

    Source http://www.aircrack-ng.org/doku.php?...ee80211_stacks
    Last edited by MassAppeal; 01-18-2010 at 03:46 PM.

  2. #2
    Developer muts's Avatar
    Join Date
    Jan 2006
    Posts
    272

    Default Re: Issue: ALFA AWUS036H WPA Handshake!

    BT includes both the mac802.11 (r8187) and ieee802.11 (rtl8187) versions of the 8187 driver. Both worked for me in a testing environment.
    Try chaning between the drivers and test with the old ones, see how it works out for you.

  3. #3
    Member
    Join Date
    Jan 2010
    Posts
    102

    Default Re: Issue: ALFA AWUS036H WPA Handshake!

    Ok im getting some funny results.

    Setup#1

    My Laptop
    Internal Wifi 1490 Card - Connected to Router upstairs
    ALFA Card running in BT

    Upstairs
    Netgear Router 54mb
    Dads Laptop

    I changed the way i go into monitor mode
    Code:
    airmon-ng start wlan0
    ifconfig mon0 down
    macchanger -A mon0
    ifconfig mon0 up
    airodump-ng mon0
    airodump-ng -w test -c 11 --bssid 00:14:6C:9E:1F:8E mon0
    aireplay-ng --deauth <Tried (1),(5),(10)&(0)> -a 00:14:6C:9E:1F:8E -c <My 1490 Mac>
    That works perfectly... as soon as i re-authenticate i get the WPA key, It comes even quicker when i refresh a web browser in windows.

    What stumps me is this,
    Code:
    aireplay-ng --deauth <Tried (1),(5),(10)&(0)> -a 00:14:6C:9E:1F:8E -c <Dads MAC>
    I can deauth him but it takes about 5min for the Handshake to come through, compared to 10seconds whe i deauth myself.

    I can see his packets stop & data stop then start back up again. I just find it odd that it takes such a long time to come through. Which may have been my problem in the first place.

    Its as if its to far away or something... i mean the signal is -35 to 45... surely thats good enough. I have the ALFA Card with a 5db antenna...

    EDIT

    Have just tested this theory... and it is to far away... i thought surely the ALFA Card would do it but it doesnt... it only goes about 10m through walls. line of sight outside is ok for about 20m from what ive tested so far.
    Last edited by MassAppeal; 01-19-2010 at 08:43 AM.

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