Full Disclosure mailing list archives

Re: Strange Emails -- What are they?


From: Cory <snort () babtras com>
Date: Wed, 07 Jun 2006 10:56:17 -0600

My best guess is that they are trying to poison bayesian spam filters with these. I don't know if it is actually working, but I can't imagine how else these would serve any purpose.

Simon Smith wrote:

Hi List,
   I've had roughly one dozen people forward emails to me from
different companies asking me to figure out what these emails are. The
emails appear to be emails from the from the recipient. For example,
John Doe appears to be sending an email to himself, but he's not. In
reality when checking the mail server logs I find that the mails
originate from the Internet.  Other emails like the one below contain a
different sender than the recipient but the contents of the emails are
the same and they are still from the same domain.


-------------------- BEGIN EMAIL ----------------------

Received: from 83.145.66.70 ([172.18.12.134])
by vms043.mailsrvcs.net (Sun Java System Messaging Server 6.2-4.02 (built
Sep
9 2005)) with ESMTP id <0J0E00AVSNH9ETG0 () vms043 mailsrvcs net> for
xxxxxxx () verizon net; Mon, 05 Jun 2006 15:55:58 -0500 (CDT)
Received: from raptor.net (83.145.66.70)
by sv12pub.verizon.net (MailPass SMTP server v1.2.0 - 112105154401JY+PrW)
with  SMTP id <5-25035-180-25035-2228-2-1149540957> for
vms043pub.verizon.net;
Mon, 05 Jun 2006 15:55:58 -0500
Date: Mon, 05 Jun 2006 22:52:40 +0100
From: "Gil.novak" <xxxxxx () verizon net>
Subject: 586876
X-Originating-IP: [83.145.66.70]
To: "xxx.xxxx" <xxxxxx () verizon net>
Message-id: <ayoznyepbslfqdlqblr () verizon net>
MIME-version: 1.0
Content-type: text/html; charset=us-ascii
Content-transfer-encoding: 7bit



-----Original Message-----
From: xxx.xxxx [mailto:xxx.xxxx () verizon net]
Sent: Monday, June 05, 2006 5:53 PM
To: xxx.xxxx
Subject: 586876


969



-------------------- END EMAIL ---------------------

Is this just another instance of spammers fishing for legit addresses?
If so, then why the hell are they sending email from invalid addresses?
I can dig into this a lot further if I need to, but I wanted to see if
anyone else had any ideas about it first.  Thanks in advance!!!


-Simon


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_______________________________________________
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Charter: http://lists.grok.org.uk/full-disclosure-charter.html
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