salted md5 - Printable Version

salted md5 - Printable Version

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salted md5 - sporet - 11-03-2012

I would like to crack a hash which is md5(md5($salt).md5($pass)) with hashcat on my ATI Radeon graphics card.
I tried this:

Code:
hashcat-cli64.exe --attack-mode=3 --hash-mode=9 --output-file=out.txt --threads=1 --pw-min=4 --pw-max=12 --custom-charset1=abcdefghijklmnopqrstuvwxyz1234567890 hash.txt

but I didn't get any output, just this:

Code:
Usage: hashcat [options] hashfile [mask|wordfiles|directories]

Try --help for more help.

In hash.txt there is just one salted md5 (hash mode 9 is correct) in the format 32chars:8chars
What am I doing wrong?

RE: salted md5 - radix - 11-03-2012

you didn't supply a mask

RE: salted md5 - sporet - 11-03-2012

thanks, now it's working. However I wanted to use oclHashcat-lite64.exe since it's faster but it seems like it's not working there:

Code:
D:\hashcat-gui-0.5.1\oclHashcat-lite>oclHashcat-lite64.exe --hash-type=1000 -o out.txt --pw-min=4 --pw-max=12 --custom-charset1=abcdefghijklmnopqrstuvwxyz XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:XXXXXXXX ?l?l?l?l?l?l?l?l?l?l?l?l?

ERROR: cannot read oclHashcat-lite.restore

RE: salted md5 - KT819GM - 11-03-2012

Try to delete "oclHashcat-lite.restore" from *lite directory.

RE: salted md5 - atom - 11-03-2012

Your mask is also incorrect, you are using ?l instead of ?1 and you have a single ? on the end

RE: salted md5 - sporet - 11-03-2012

I deleted oclHashcat-lite.restore, now I got this:

Code:
D:\hashcat-gui-0.5.1\oclHashcat-lite>oclHashcat-lite64.exe --hash-type=1000 -o out.txt --pw-min=4 --pw-max=12 --custom-charset1=abcdefghijklmnopqrstuvwxyz XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:XXXXXXXX ?1

'D:\hashcat-gui-0.5.1\oclHashcat-lite' is not recognized as an internal or external command,

operable program or batch file.

p.s.
The md5 and salt doesn't have any special characters, just alphanumeric.

RE: salted md5 - undeath - 11-03-2012

get some cmd crash course. You must not include the leading path. Also your mask is now totally fucked.

RE: salted md5 - sporet - 11-03-2012

Sorry my bad. Now I get this:

Code:
oclHashcat-lite64.exe is not a valid Win32 application. Access is denied.

I'm running Win7 x64, but seems like I have to use oclHashcat-lite32.exe

btw is oclHashcat-lite even able to crack md5(md5($salt).md5($pass)) ?

When I use oclHashcat-lite32 I get this:

Code:
ERROR: hash: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:XXXXXXXX, line length exception: 41

ERROR: invalid hash 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:XXXXXXXX'. double check -m parameter

Is the 5char length salt issue still a bug?

RE: salted md5 - undeath - 11-03-2012

you are using the wrong hash mode. Have a look at --help
With issuing the previous command you deleted oclhashcat-lite64.exe (it is a 0 bytes file now). Redownload/extract the exe again.

RE: salted md5 - sporet - 11-03-2012

I used oclHashcat-lite from hashcat-gui-0.5.1, but thats outdated. Now I downloaded oclHashcat-lite-0.10 where oclHashcat-lite-64 is running fine.