Re: password cracker for PCAnywhere and VNC (RFB 003.008)

[pagvac <unknown.pentester () gmail com>]

Good point! Definately the first thing you want to do is compile a
list of *commonly* used usernames/passwords and also grab *real ones*
from employees' email addresses.

I recommend using an email harvester tool (just like the ones used by
spammers). Most of the times usernames which are valid on the client's
web interfaces can be extracted from email addresses. Also remember
getting email addresses not just from the web but *also* from whois
queries against the client's IP addresses and domain names.

Do *not* forget to try passwords equal to usernames. I've seen this
work several times on real pentests, and of course null (empty)
passwords.

On 3/6/06, Christine Kronberg <Christine_Kronberg () genua de> wrote:
> On Thu, 2 Mar 2006, 3 shool wrote:
> > Thank you all for your emails.
> >
> > Just to elaborate more on my earlier email, what I'm looking for is a
> > Remote Password Cracker. Cain & Able I think will not help me in this
> > case, as I can't sniff also. These servers are on Internet.
> >
> > I'll try hydra although it has its own limitations. I tried Brutus but
> > it doesn't do VNC or PCAnywhere password cracking.
> >
> > Does anyone know of good username/password lists for dictionary attack?
>
>    Be careful. Do some calculating first. I've done a similar attack for
>    a customer a short while back. My initial username/password files turned
>    out to be too comprehensive (the whole attack would have run about 4
>    years). Instead I used google to search for persons working for the
>    customer to get a list of possible usernames. Then I stripped down
>    my password dictionary to meet my and the customers requirements (the
>    attack must not run 4 years - 5 hours are enough).
>    It was a shot in the dark. I agree with the other posting: try to
>    get information about the username/password policy of the customer.
>    That will help more than the poking I did.
>
>    Cheers,
>
>
>                                                    Christine Kronberg.
>
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--
pagvac (Adrian Pastor)
www.ikwt.com - In Knowledge We Trust

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