AIRCRACK-NG(1)AIRCRACK-NG(1)NAMEaircrack-ng - a 802.11 WEP / WPA-PSK key cracker
SYNOPSISaircrack-ng [options] <.cap / .ivs file(s)>
DESCRIPTIONaircrack-ng is an 802.11 WEP and WPA/WPA2-PSK key cracking program.
It can recover the WEP key once enough encrypted packets have been cap‐
tured with airodump-ng. This part of the aircrack-ng suite determines
the WEP key using two fundamental methods. The first method is via the
PTW approach (Pyshkin, Tews, Weinmann). The main advantage of the PTW
approach is that very few data packets are required to crack the WEP
key. The second method is the FMS/KoreK method. The FMS/KoreK method
incorporates various statistical attacks to discover the WEP key and
uses these in combination with brute forcing.
Additionally, the program offers a dictionary method for determining
the WEP key. For cracking WPA/WPA2 pre-shared keys, a wordlist (file or
stdin) or an airolib-ng has to be used.
OPTIONS
Common options:
-a <amode>
Force the attack mode, 1 or wep for WEP and 2 or wpa for WPA-
PSK.
-e <essid>
Select the target network based on the ESSID. This option is
also required for WPA cracking if the SSID is cloacked. For SSID
containing special characters, see http://www.aircrack-
ng.org/doku.php?id=faq#how_to_use_spaces_double_quote_and_sin‐
gle_quote_etc._in_ap_names
-b <bssid> or --bssid <bssid>
Select the target network based on the access point MAC address.
-p <nbcpu>
Set this option to the number of CPUs to use (only available on
SMP systems). By default, it uses all available CPUs
-q If set, no status information is displayed.
-C <macs> or --combine <macs>
Merges all those APs MAC (separated by a comma) into a virtual
one.
-l <file>
Write the key into a file.
-E <file>
Create Elcomsoft Wireless Security Auditor (EWSA) Project file
v3.02.
Static WEP cracking options:
-c Search alpha-numeric characters only.
-t Search binary coded decimal characters only.
-h Search the numeric key for Fritz!BOX
-d <mask> or --debug <mask>
Specify mask of the key. For example: A1:XX:CF
-m <maddr>
Only keep the IVs coming from packets that match this MAC
address. Alternatively, use -m ff:ff:ff:ff:ff:ff to use all and
every IVs, regardless of the network (this disables ESSID and
BSSID filtering).
-n <nbits>
Specify the length of the key: 64 for 40-bit WEP, 128 for
104-bit WEP, etc., until 512 bits of length. The default value
is 128.
-i <index>
Only keep the IVs that have this key index (1 to 4). The default
behaviour is to ignore the key index in the packet, and use the
IV regardless.
-f <fudge>
By default, this parameter is set to 2. Use a higher value to
increase the bruteforce level: cracking will take more time, but
with a higher likelihood of success.
-k <korek>
There are 17 KoreK attacks. Sometimes one attack creates a huge
false positive that prevents the key from being found, even with
lots of IVs. Try -k 1, -k 2, ... -k 17 to disable each attack
selectively.
-x or -x0
Disable last keybytes bruteforce (not advised).
-x1 Enable last keybyte bruteforcing (default)
-x2 Enable last two keybytes bruteforcing.
-X Disable bruteforce multithreading (SMP only).
-s Shows ASCII version of the key at the right of the screen.
-y This is an experimental single brute-force attack which should
only be used when the standard attack mode fails with more than
one million IVs.
-z Uses PTW (Andrei Pyshkin, Erik Tews and Ralf-Philipp Weinmann)
attack (default attack).
-P <num> or --ptw-debug <num>
PTW debug: 1 Disable klein, 2 PTW.
-K Use KoreK attacks instead of PTW.
-D or --wep-decloak
WEP decloak mode.
-1 or --oneshot
Run only 1 try to crack key with PTW.
-M <num>
Specify maximum number of IVs to use.
WEP and WPA-PSK cracking options
-w <words>
Path to a dictionary file for wpa cracking. Specify "-" to use
stdin. Here is a list of wordlists: http://www.aircrack-
ng.org/doku.php?id=faq#where_can_i_find_good_wordlists
WPA-PSK cracking options:
-S WPA cracking speed test.
-r <database>
Path to the airolib-ng database. Cannot be used with '-w'.
Other options:
-H or --help
Show help screen
-u or --cpu-detect
Provide information on the number of CPUs and MMX/SSE support
AUTHOR
This manual page was written by Adam Cecile <gandalf@le-vert.net> for
the Debian system (but may be used by others). Permission is granted
to copy, distribute and/or modify this document under the terms of the
GNU General Public License, Version 2 or any later version published by
the Free Software Foundation On Debian systems, the complete text of
the GNU General Public License can be found in /usr/share/common-
licenses/GPL.
SEE ALSOairbase-ng(8)aireplay-ng(8)airmon-ng(8)airodump-ng(8)airodump-ng-oui-update(8)airserv-ng(8)airtun-ng(8)besside-ng(8)easside-ng(8)tkiptun-ng(8)wesside-ng(8)airdecap-ng(1)airdecloak-ng(1)airolib-ng(1)besside-ng-crawler(1)buddy-ng(1)ivstools(1)kstats(1)makeivs-ng(1)packetforge-ng(1)wpaclean(1)Version 1.2-rc2 April 2015 AIRCRACK-NG(1)
