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Custom iterations count

December 28, 2015, 8:54 am
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Hello everyone,

I'll admit this is a pretty weird scenario, but sadly I have to face it.
I have a sha512 salted hash, with custom iterations for each user. For example User A has 7200 iterations, User B 9100 and so on.
(Beats me why they didn't just use bcrypt with a freaking high cost value)

Any suggestions on how can I deal with it?
Github forking is the only way?
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Password in hidden truecrypt file not found...

December 29, 2015, 11:27 am
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Hi,

I was trying to make a dictionary attack to a truecrypt file, for which I forgot the password. I was first trying if my command-line works by creating a hidden truecrypt file with a password, that I know. Then running my command-line with a dictionary which also contains my password on that tc-file. Unfortunately oclhashcat does not find the password. Maybe anyone can help. Here is what I tried:

cudaHashcat64.exe -a 0 -m 6211 tc-file dict-file > result.txt

And I repeated this line for all possible attacks (6212, 6213, 6221, 6222, 6223, 6231, 6232, 6233, 6241, 6242, 6243).
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Please identify what hash type this is

December 30, 2015, 2:42 pm
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Hello! Would someone please identify what hash type this is?
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Noob help >.

December 31, 2015, 12:32 pm
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hello guys im struggling to get the output right on hashcat...

i dont want {hash:pass}{hash:pass}{hash:pass}{hash:pass}

I want just the cracked password like this:

pass
pass
pass
pass
pass

Is there any way i can do this? 

Thanks for the help Big Grin
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Get rid of CUDA

December 31, 2015, 4:05 pm
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For those who are following the GIT tree we just merged the GetRidOfCUDA branch to master which had a big impact on the code.

Basically, as the name says, we replaced CUDA with OpenCL for NVidia. Discussions that lead to the change can be found here: 

https://github.com/hashcat/oclHashcat/issues/3
https://github.com/hashcat/oclHashcat/issues/4
https://github.com/hashcat/oclHashcat/issues/20

The reasons are:
  • There's no JIT compiler on CUDA. We can't fully accelerate DEScrypt cracking without it, since it requires to have the salt known at compile time
  • Preparation for other OpenCL compatible platform support. ATM we support GPUs only, but this should enable the use of CPU and/or FPGA to run oclHashcat when finished
  • Preparation for restructuring the files to help integration into linux distributions. Having two binaries (oclHashcat and cudaHashcat) is confusing and creates library conflicts
  • Get rid of two packages for oclHashcat. Namely get rid of cudaHashcat. Both AMD and NV users will use oclHashcat64.bin or oclHashcat64.exe
  • Distribute the kernels as source. That should greatly reduce the selection of imperfect binary kernels, especially for low-end GPUs
  • No more need to have two special code bases for AMD and NV, this will reduce maintainance cost
  • No more dependency on CUDA SDK, should help in building. We can use the OpenCL headers from the AMD SDK, they are fully compatible, even cross-platform
  • No more precompilation for the developers of all kernel for all GPU types (this took around a hour for each beta)
  • Reduced package size. For example for NVidia dropped from 89MB to 3MB
While refactorizing I also dropped the support for SIMD code for almost the same reasons:
  • Make the Kernelcode more compact, therefore more portable. This may get even more important when adding other platforms
  • Almost no GPUs are left that require SIMD code to reach full performance, namely AMD 4xxx, 5xxx and 6xxx. While 4xxx was already dropped from catalyst, AMD said they are about to drop support for 5xxx and 6xxx as well
  • In case we really need it back, now with "true" vector datatype support due to OpenCL, even for NVidia, we can use vector datatypes in innerloop kernels
  • Preparation to enable the port of some of the rules that were only useable in CPU, for example the @ Purge rule or the M Memorize rule which then enables append/prepend memory rules
This refactorization really created some work:
  • Half of the kernels dropped in speed before optimizing them for OpenCL + NV. For each kernel it was neccessay to analyze the root causes of performace drops and find solutions
  • NVidias OpenCL runtime does not support C++ code (as AMD does by using -x c++ flag) but a lot of the shared GPU code relied on function overloading etc
  • The HMS code based almost completely on macro-dependant branches which had to be rewritten to true runtime branches. This also had a big impact on the Makefile and the SDK dependancies
  • Dropping the SIMD code
Of course such a big change has also a big impact on performance, but we were able to almost completely work around all performance drops. In return we get some huge speed boosts for some other algorithms:

https://docs.google.com/spreadsheets/d/1...li=1#gid=0

Note that these numbers (especially the red boxes) are not final. I'll continue to find solutions for them in the master branch.

Thanks to philsmd for porting the HMS (Fanspeed, Utilization, Temperature) code portion.
Thanks to dropdead, epixoip, philsmd, Rolf and Xanadrel for help with performance tuning.

--
atom
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hashcat wont work for me!!!

December 31, 2015, 5:48 pm
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finally i use Linux undefined

hashcat wont work for me!!! 

i use linux mint 17.3 with r9 200 driver 


i have this error : 

./oclHashcat64.bin 
./oclHashcat64.bin: /usr/lib/x86_64-linux-gnu/libOpenCL.so.1: version `OPENCL_2.0' not found (required by ./oclHashcat64.bin) 

when i use this command (dpkg -l | egrep -i 'nvidia|fglrx|opencl') i have : 

ii nvidia-prime-applet 1.0.3 all An applet for NVIDIA Prime 
ii ocl-icd-libopencl1:amd64 2.1.3-4 amd64 Generic OpenCL ICD Loader 
ii ocl-icd-libopencl1:i386 2.1.3-4 i386 Generic OpenCL ICD Loader
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Kali Linux Error - this copy of hashcat is outdated

January 1, 2016, 1:20 am
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Hi guys

so I'm a little lost here. I've read a lot of old forum posts on this topic but found no solutions. I have installed the most up to date Kali Linux a few days back. I tried to use the bundled hashcat which posted "ERROR: this copy of hashcat is outdated. Get a more recent version." in the terminal and does nothing more.
I tried to remove the bundled version via apt-get remove, then reinstalled it with apt-get install, but I'm still getting the same error. . .

any wisdom?
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How to compile hashcat into static library used in vs?

January 1, 2016, 4:21 am
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I'm codeing a forensic software, he needs to use hashcat to crack the password, so I would like to compile hashcat into library calls in vs.

Why didn't hashcat project Makefile. am file? I can't configure static library out of the Windows
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Tri-MD5 Decrypting

January 1, 2016, 4:50 am
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Sorry if this should be in another place but I'm using cudahashcat and this seemed like the most appropriate forum.

My problem is rather specific. I am trying to crack an MD5 hash but the problem is that it contains multiple hashes. The full formula is
Code:
md5(md5(value):salt:md5(value))

Does anyone know the best way to approach this? I know the variables for everything inside the hash (except the original passphrase) I just don't know how to do this since in the mode I can only see md5($salt.md5($pass)).

Thanks
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MD5 Line-length Exception?

January 1, 2016, 8:14 am
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Problems with non-English hashes

January 1, 2016, 9:21 am
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Hello everyone and happy new year!

Currently I'm working on a pretty large list (3.9M hashes, trimmed down to 2.2M unique hashes) made of plain, un-salted MD5 hashes.
I know for sure that all the plains were created from Turkish people.
The problem is... I'm recovering very few of them (just a little less than 200 words).
Honestly, that's pretty a bummer: I'm far away from being a top cracker, but honestly with such a large collection I hoped I could retrieve a lot more of them before starting to have problems.
At the beginning I thought I wrongly detected the hash type or trying to crack something meaningless (ie token reset or something like that), but then some plains started to pop out, so those hashes are indeed passwords.

This is what I tried so far:
  • Plain run of rockyou wordlist + all available stock rules
  • Plain run of hashes.org worlist + all available stock rules
  • Plain run of several different wordlists of previous leaks + all available stock rules
  • Download the Turkish dictionary + all available stock rules
  • Combining Turkish dictionary with wordlists
  • Download list of names and celebrities + all available stock rules
  • Started using masked attack (at the moment processing the rockyou-3 mask file)
  • Replacing default charset with Turkish one (lower and upper chars)
  • Started generating random rules
Sadly, I got very little improvement: only 2-3 passwords every time. However I noticed that there aren't any chars coming from the Turkish alphabet (ğ, ş ...), so my question is: am I doing it right?
Am I missing anything like file encoding or something else?
Maybe the originally chars were not encoded properly?

Any suggestions?
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Multi System GPU Setup

January 4, 2016, 12:16 am
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Anyone have an partially-easy setup for multi system setups?  Hashstack (Sagitta) seems like a good option, but wandering if anyone has any other options for already built systems. (Epixoip, you can probably school me heavily on this topic)

Have several Nvidia cards on a few systems (Ubuntu 12.04.5) running 1x Ubuntu server 14.03 but haven't had too much luck getting them all talking.  I want to be able to start hashcat on a master-node and see all 20+gpus running the same attack function.  

Currently, I break up my processes into 5 attacks and have each system tackling a separate part, or rule, of what I want to do.  Would like to combine power and run through them one at a time with consolidated power. 

I setup hashtopus but I just distribute the attacks to each system separately from a NAS-FTP...its just not combined power.

Any thoughts here?
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markprocessor --combinations and -q -r

January 5, 2016, 12:45 am
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Hi all,

Id like to work out the word combinations based on the -q and 0r option, but mp won't allow it. 

Is there another way to make --combinations work with -q & -r.

Code:
--seq-max can not be used with --combinations



thanks
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Hashcat Exhausted when using rules

January 5, 2016, 2:10 am
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Hi all,

Im trying to use STDIN and STDOUT with rules to ensure full GPU performance, but hashcat runs through it all within 5 seconds and states exhausted with no key found. Also GPU's are never used.

Using it without the rule works fine.

My rule creation

Code:
/mp64.bin -o sfxU.rule -1 ?u '$?1$?1'



My command

Code:
/mp64.bin  ?u?u?u?u?u?u | ./cudaHashcat64.bin --hash-type=2500 -r rules/sfxU.rule /cracking/wireless/testhashcat.hccap


[Image: attachment.php?aid=364]

.png   charlesholtzkampf_—_root_toffee___opt_hashcat_—_ssh_charles_192_168_16_246_—_223×49.png (Size: 24.09 KB / Downloads: 28)
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Too many collisions with -m 9720

January 5, 2016, 11:40 pm
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Hi,

Using latest cudahashcat, I try to collide some old Office hashes.
Using -m 9710 is okay.
Then I use -m 9720 with the results given by -m 9710.
My issue is that this last cmd give me lot's of collisions, let's say 5 in one hour. Cool, but what if I only want one collision ? Or two ? Can I specify this ?

Thank you.
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Finding salt with password and hash?

January 6, 2016, 3:27 am
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I have the plaintext password and hash, but don't know the hashing algorithm. I can't recreate the hash using online tools* so I think the hashing algorithm is salted, but I don't know what the salt is. What are my options here?

*On that note, can hashcat generate hashes from plaintext passwords instead of just the inverse? It would help me figure out if it is salted or not.
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Possible descrypt performance issue

January 6, 2016, 11:37 am
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Was really excited to download the new version and check the performance!

Note: Same video card for all below.
However, installed Catalyst 15.7.1 for oclHashcat 2.0.1

For the previous release I was getting about 35MH/s (single hash)
For 2.01 I got an amazing 152MH/s.

Wow!
So far, so good.

For my second benchmark I ran with 13 descrypt hashes - but all the same salt.
(as we all know, descrypt has a very limited number of salts, so this performance is important).

Unfortunately, performance dropped to 30MH/s.

So, is the simply a math error in reporting of the performance?
Or, is this an artifact of the algorithm changes?
(my fear is that it's the latter...)
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Ghế nhập khẩu và những điều cần lưu ý

January 6, 2016, 11:37 pm
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Dòng sản phẩm ghế nhập khẩu là dòng sản phẩm mà các công ty Việt Nam đưa vào thị trường nội địa để phân phối cho khách hàng, nhưng không phải công ty nào cũng có tiềm lực và khả năng để làm được điều đó. Như vậy dẫn đến việc các sản phẩm nhái nhập khẩu đang tràn lan trên thị trường.

Vậy làm sao để có được những chiếc ghế văn phòng nhập khẩu chính hãng cho văn phòng của mình?

Hiện nay những chiếc ghế nhập khẩu đang được sử dụng rất nhiều trong các công trình hội trường nhưng không phải ai cũng biết chọn cho mình một công ty uy tín về nhập khẩu cũng như chọn cho mình những chiếc ghế nhập khẩu cao cấp chính hãng và giá cả lại rẻ và phù hợp.

Mỗi dòng sản phẩm đều có những đặc tính khác nhau nên việc lựa chọn hàng chính hãng là khá khó nhưng cũng không phải không có cách, hơn nữa chúng ta cần một công ty một doanh nghiệp nào đó uy tín và đáng tin tưởng để có thể giúp chúng ta có được những sản phẩm chính hãng tốt nhất.

Để có được một sản phẩm nhập khẩu tốt nhất:

Thứ nhất: Cần phải chọn cho mình một công ty chuyên về nhập khẩu uy tín nhất, GNK chúng tôi với nhiều năm kinh nghiệm trong lĩnh vực nhập khẩu ghế đặc biết là dòng ghế hội trường nhập khẩu chúng tôi muốn mang đến cho bạn những sản phẩm chính hãng nhập khẩu nguyên chiếc mà thủ tục nhanh gọn và giá cả hợp lý nhất.

Thứ 2: Tránh mua những sản phẩm ở nhưng nơi bán lẻ các dòng ghế, gọi cái là có hàng ngay là không bao giờ có sản phẩm nhập khẩu chính hãng, vì khi đặt hàng thì còn phải làm thủ tục thì mới có thể lấy hàng được và quá trình vận chuyển cũng mất khá nhiều thời gian, nên bạn cần phải lưu ý, khi đặt ghế nhập khẩu thì cần phải có thời gian chờ, khỏng 30 ngày.

Đến với GNk để bạn có thể có được những sản phẩm chất lượng uy tín nhất.
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installation problems

January 7, 2016, 5:27 am
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Finally i found !!!
PC runs Kali linux everytime i run prog. i got error ERROR: this copy of hashcat is outdated. Get a more recent version.
I have tried everything ,,,updating removing downloading ....does not make sense ....what should i do ..... who can help??????
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Yet Another Build Review

January 7, 2016, 2:49 pm
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I've read just about every build suggestion on here & have several pages of notes, but this is my first build so I'm still a bit anxious about it. I'm hoping someone with experience can look over what I've got here for any obvious flaws. 

Case: CHENBRO RM41300-FS81 - http://www.newegg.com/Product/Product.as...6811123178
Mobo: ASRock Z170 OC  - http://www.newegg.com/Product/Product.as...6813157649
CPU: Quad core i7 - http://www.newegg.com/Product/Product.as...6819116987
GPUs: 4x  GTX 980s - http://www.newegg.com/Product/Product.as...6814133563
RAM: 16GB DDR4 (2 x 8GB)
Storage:  5x 2TB HDs RAID 5 (8TB total) - http://www.newegg.com/Product/Product.as...6822148910
OS: 120GB SSD (Samsung 850 EVO) - http://www.newegg.com/Product/Product.as...12K2EV4048
Power: 1600W Lepa G1600 Power Supply - http://www.newegg.com/Product/Product.as...6817494006

Total: $3,779

I've also seen epixoip recommend 3 extra fans to go with the CHENBRO case, but I'm not really sure where those should go. 

I appreciate your thoughts &/or suggestions.
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