Hello, I'm new in Linux environment, so there is a chance a make a foolish mistake somewhere. Please forgive my faults.

What steps will reproduce the problem? 1.installing nvidia-driver 2.installing pyrit 3.installing cpyrit-cuda everything is up-to-date. when i check, i see: pyrit list_cores The following cores seem available...

1: 'CUDA-Device #1 'GeForce GTX 460M''

2: 'CPU-Core (SSE2)'

3: 'CPU-Core (SSE2)'

4: 'CPU-Core (SSE2)'

5: 'CPU-Core (SSE2)'

6: 'CPU-Core (SSE2)'

7: 'CPU-Core (SSE2)'

8: 'CPU-Core (SSE2)'

pyrit selftest: Cores incorporated in the test:

1: 'CUDA-Device #1 'GeForce GTX 460M''

2: 'CPU-Core (SSE2)'

3: 'CPU-Core (SSE2)'

4: 'CPU-Core (SSE2)'

5: 'CPU-Core (SSE2)'

6: 'CPU-Core (SSE2)'

7: 'CPU-Core (SSE2)'

8: 'CPU-Core (SSE2)'

Running selftest...

All results verified. Your installation seems OK.

pyrit benchmark Running benchmark (10037.1 PMKs/s)... \

Computed 10037.06 PMKs/s total.

1: 'CUDA-Device #1 'GeForce GTX 460M'': 8741.6 PMKs/s (RTT 2.8)

2: 'CPU-Core (SSE2)': 276.0 PMKs/s (RTT 3.0)

3: 'CPU-Core (SSE2)': 274.0 PMKs/s (RTT 3.0)

4: 'CPU-Core (SSE2)': 270.8 PMKs/s (RTT 3.0)

5: 'CPU-Core (SSE2)': 273.4 PMKs/s (RTT 3.0)

6: 'CPU-Core (SSE2)': 273.9 PMKs/s (RTT 3.0)

7: 'CPU-Core (SSE2)': 274.5 PMKs/s (RTT 3.0)

8: 'CPU-Core (SSE2)': 276.9 PMKs/s (RTT 3.0)

next when i try to test my network security: pyrit -e xxx -i /pentest/passwords/wordlists/bt4-password.txt -r testing.cap attack_cowpatty

i see(What is the expected output? What do you see instead?): Pyrit 0.3.1-dev (svn r280) (C) 2008-2010 Lukas Lueg http://pyrit.googlecode.com This code is distributed under the GNU General Public License v3+

Traceback (most recent call last): File "/usr/bin/pyrit", line 6, in <module> pyrit_cli.Pyrit_CLI().initFromArgv() File "/usr/lib/python2.5/site-packages/pyrit_cli.py", line 116, in initFromArgv func(self, **options) File "/usr/lib/python2.5/site-packages/pyrit_cli.py", line 164, in new_f f(*args, **kwds) File "/usr/lib/python2.5/site-packages/pyrit_cli.py", line 1102, in attack_cowpatty with cpyrit.util.CowpattyFile(infile) as cowreader: File "/usr/lib/python2.5/site-packages/cpyrit/util.py", line 287, in init raise RuntimeError("Not a cowpatty-file.") RuntimeError: Not a cowpatty-file.

What version of the product are you using? On what operating system? So, I'm using Backtrack 4 RC2 on USB, on my notebook witch have Intel Core I7, Geforce GTX 460M Cuda 1,5GB and wieless card Atheros AR9285 witch is compatible with BT4 RC2. Pyrit version is 0.3.1-dev (svn r280), nvidia-driver 256.40-bt1 Driver for nvidia graphics cards 2.6.34, cpyrit-cuda 256.40-bt1.

waiting for your help. ive found some simillar issues here but non of the had same error code. respectfully Johnny

RuntimeError: Not a cowpatty-file.

testing.cap is not a cowpatty file.

remove the cowpatty command, besides you do not need to use cowpatty to crack wpa with pyrit

attack_cowpatty uses Pairwise Master Keys stored in a binary file as used by cowpatty (e.g. generated through genpmk). If you have just a text-file with passwords, use attack_passthrough

as i assume cowpatty file is *.cap or *.pcap and it is created by some program when someone is try to connect to his ap, yes ? so i can deauth him, he will try to connect again and then i will get my handshake connection ?? I have generated by genpmk hashfile with no extension witch as i suppose contains pmks. i have used a dictionary bt4-password.txt. should i have handshakes before generating the hash file ? currently i think my wireless card is a bit to weak (im getting 1-5 ivs/s) (waiting 1 hour and have no handshakes) so i will buy one of this (plz tell me witch one is the best of them): Alfa AWUS036NH or Alfa AWUS050NH ??

cowpatty files are databases of precomputed Pairwise Master Keys, .cap or .pcap files are packet dumps with the data from the air.

for generating a cowpatty file i should use genpmk, for dumping data from air i should use airodump-ng, thats right ??

That is.

Keep in mind that the whole cowpatty functionality is in Pyrit for legacy reasons. Cowpatty is still a common tool, although outdated and extremely slow compared to Pyrit.

i understand im just trying to learn all of pyrit attacks: cowpatty, passtrough and batch method. could u explain me when i recive handshake file ?? (with commands)