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coWPAtty for Windows MAIN:: u) P7 T* y0 n) P3 x
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& u# Y3 e/ z9 O& Q2 X4 a6 o/ y0 H6 u"coWPAtty is designed to audit the pre-shared key (PSK) selection for WPA networks based on the TKIP protocol." –
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) l/ m4 v! x0 CJoshua Wright.
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. P: z H8 L: s: q8 WProject Homepage: http://www.willhackforsushi.com/Cowpatty.html
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Local Mirror: Cowpatty-4.0-win32.zip: g: Y! L9 e" S8 u
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coWPAtty Dictionary Attack
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Precomputing WPA PMK to crack WPA PSK
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" q7 a: g7 n" U7 M7 z- S6 ccoWPAtty Precomputed WPA Attack
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$ y2 O& j! l; h* |5 U* HcoWPAtty Recomputed WPA2 Attack# l( P/ X5 K+ `, ~
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% u( ^- o& h8 [: `& Y) ZcoWPAtty\" |: O/ F) h! w6 n+ J3 U ^ a7 [7 C4 Z( {; i
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coWPAtty& f6 }; K! B- c) @8 H, g' O/ c8 I" j+ g
Usage:- U; $ ` m1 _, y: F1 Y2 t2 ^7 b
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coWPAtty Dictionary Attack:; [# `; e' S5 ^8 D( J w2 x) v
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Toperform the coWPAtty dictionary attack we need to supply the tool witha capture file that includes the TKIP four-way handshake, a dictionaryfile of passphrases to guess with and the SSID for the network.2 E& W7 _0 Q& X' b1 |- p
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1 X; p P+ a+ S3 c) o% L! eIn orderto collect the four-way handshake you can either wait until a clientjoins the network or preferably you can force it to rejoin the networkusing tools like void11 or aireplay and capture the handshakes usingsomething like kismet, ethereal or airodump.
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, H* |4 `) a2 d3 {( Ocowpatty -f dict -r wpapsk-linksys.dump. Z4 w; l6 K& b |7 i+ }; f- Y' S
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As youcan see this simple dictionary attack took 51 seconds, we can speed upthis process by precomputing the WPA-PMK to crack the WPA-PSK (seebelow).8 U f C3 {( |3 K* j% H' T
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7 p" a1 Q/ O) u+ p- \: @wpapsk-linksys.dump is the capture containing the four-way handshake
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$ F. W# F4 d1 Y! j2 {) L2 h. Zdict is the password file , o0 V0 A: h0 n% L+ w9 f
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linksys is the network SSID
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: O6 A) l) F" K, q; f1 pPrecomputing WPA PMK to crack WPA PSK:( V% h0 ~; p3 U$ w' B. g' N: x
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+ B" s% @+ ^3 v8 |6 ~( cgenpmkis used to precompute the hash files in a similar way to Rainbow tablesis used to pre-hash passwords in Windows LANMan attacks.2 Y% @3 @, U5 M
There is aslight difference however in WPA in that the SSID of the network isused as well as the WPA-PSK to "salt" the hash.
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This means that weneed a different set of hashes for each and every unique SSID i.e. aset for "linksys" a set for "tsunami" etc.
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So to generate some hash files for a network using the SSID cuckoo we use:
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genpmk
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linksys.hashfile
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$ S3 G2 n: b) G) Xdict is the password file
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linksys.hashfile is our output file% v8 Z7 d. K2 [$ k5 G8 S! S& k
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linksys is the network ESSID8 U9 A/ X4 z2 y s/ s- [
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9 c7 D ^. B, ?, lcoWPAtty Precomputed WPA Attack:: l
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Now wehave created our hash file we can use it against any WPA-PSK networkthat is utilising a network SSID of cuckoo.- ~9 s( V9 c+ Y7 L) l, y, q! v
Remember the capture(wpa-test-01.cap) must contain the four-way handshake to be successful.
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cowpatty- m) |9 R6 ~) Y, r, Z9 z
3 C) ~" ]/ K/ {-d linksys.hashfile -r wpapsk-linksys.dump
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% Q9 W1 o4 V! O) C, `8 lwpa-test-01.cap is the capture containing the four-way handshake
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linksys is the network ESSID. F' n6 H- w' b Y* l
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) W! I' J9 }5 d* c7 RNotice that cracking the WPA-PSK took 0.04 seconds with the pre-computed attacked as opposed to 200 secondswith standard dictionary attack mode, albeit you do need to pre-computethe hash files prior to the attack.( ^7 f/ I# ? k6 ^/ K. k$ d
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" n& s/ \1 x0 J$ U# ^8 XcoWPAtty Precomputed WPA2 Attack:
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coWPAtty4.0 is also capable of attacking WPA2 captures.- m; `$ v( Q8 s' m: p
: T7 `/ U& h! w6 W+ u# _+ zNote: The same hashfile as was used with the WPA capture was also used with the WPA2capture.2 Y* V. Z# {7 |
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cowpatty/ L; y3 e6 `( t5 [4 m; k S8 t- ~# t8 R3 z
-d linksys.hashfile -r wpa2psk-linksys.dump& w3 j2 E0 s/ r' f. ~+ g
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wpa2psk-linksys.dump is the capture containing the four-way handshake
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linksys is the network SSID
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' s5 `" z+ A" g' w) g! BcoWPAtty Tables: 0 ^! L" ]4 Y$ B6 A( ^9 q
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The Church of Wifi have produced some lookup tables for 1000 SSID's computed against a 170,000 word password file.2 ^8 H$ c2 p3 f$ a
The resultant table are approximately 7 Gigabytes in size and can be downloaded via Torrent:! K& i1 n' i: G2 {2 L! j, w
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http://torrents.lostboxen.net/co ... atty-4.0_2006-10-19
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( p" t( G. k& m( p+ a8 uA 33 Gigabyte set of tables are also available: http://umbra.shmoo.com:6969/& i! ]! a4 f' h& }
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Or you can buy them via DVD, direct from Renderman (initiator of the project):- p' P D( A }6 R/ j, I
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http://www.renderlab.net/projects/WPA-tables/ |
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