full-disclosure - Re: Please help to spam abryson@...efocus.com.

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Date: Mon, 24 Jul 2006 15:05:02 -0300
From: Cardoso <cardosolistas@...traditorium.com>
To: Full Disclosure <full-disclosure@...ts.grok.org.uk>
Subject: Re: Please help to spam abryson@...efocus.com.

I have a sugestion. 

Actually 2.

1 - Alice creates a bait mail like "drop_spam_here(a)bytefocus.com", we
send a secret number, she replies and THEN we send our precious spam
collection to her. Worst-case scenario, It proves that some hacker has
control of Alice's mail server. And in this case, spam is the smaller of
her problems. 

OR

2 - Alice takes a picture of herself doing something silly like carving
a commodore 64 in wood or wearing a hat made of meat.. 

I vote for the second one. Worked with 419 scammers. 
http://www.boingboing.net/2006/06/28/nigerian_letter_scam.html

On Mon, 24 Jul 2006 13:54:34 -0400
Valdis.Kletnieks@...edu wrote:

V> On Mon, 24 Jul 2006 11:59:34 CDT, Paul Schmehl said:
V> 
V> > What does that prove?
V> > 
V> > telnet mail.40networks.com 25
V> > Trying 64.114.199.200...
V> > Connected to mail.40networks.com.
V> > Escape character is '^]'.
V> > 220 40networks.com ESMTP Sendmail 8.13.1/8.13.1; Mon, 24 Jul 2006 
V> > 09:45:17 -0700
V> > EHLO utdallas.edu
V> 
V> Paul, Paul, Paul... You *really* need to pay attention.
V> 
V> Yes, you can do the whole telnet thing.  That wasn't what she said.
V> 
V> What she *said* was that *if* I were to mail her a large random number,
V> like this:
V> 
V> % dd if=/dev/urandom bs=16 count=16 2> /dev/null | md5sum
V> 63cbd14c2612b7cbc7b7ce6d0e0b7fcb  -
V> 
V> that she would be able to repeat that number back to me - proving that
V> she's at least sufficiently Alice that she can read Alice's mail and
V> respond to it.
V> 
V> Strictly speaking, it doesn't prove she's Alice - but it proves she's
V> in control of that e-mail address.  Usually that's considered "close
V> enough", as demonstrated by all the mailing list software that considers
V> "reply to this random cookie/link/whatever to confirm your subscription"
V> (which is exactly this same "proof of pseudo-identity"...)
V> 
V> Yes, she could have hijacked the real Alice's e-mail account - but at that
V> point, Alice has bigger problems already....

year(now) + 1 será o ano do linux!
Cardoso <cardoso@...ox.com> - SkypeIn: (11) 3711-2466 / (41) 3941-5299
vida digital: http://www.contraditorium.com site pessoal e blog: http://www.carloscardoso.com

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