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Spoofing emails
From: dninja at gmail.com (Robin Wood)
Date: Mon, 11 May 2009 17:23:16 +0100

I built an app recently that takes a html page and a text page and
then puts them together into an email. You can put whatever you want
into either section.

If people want it I can try to dig it out.

Robin

2009/5/11 Rob Fuller <jd.mubix at gmail.com>:
Metasploit's mailer works really well, and you can craft the email however
you like, make templates, etc.. yaml ;-)

On Mon, May 11, 2009 at 10:56 AM, natron <natron at invisibledenizen.org>
wrote:

On Sat, May 9, 2009 at 11:10 AM, Adrian Crenshaw <irongeek at irongeek.com>
wrote:

220 mx.gmail.com ESMTP 70si2094099rnb
helo me.somepalace.com
250 mx.gmail.com at your service
MAIL FROM:<irongeek at iirongeek.com>
250 OK
RCPT TO:<irongeek at ggmail.com>
250 OK
DATA
354 Please start mail input.
<snip>

Anyone know of any tools to help you build html emails for this purpose?
I currently doing it in a cheating way, but it works well.? I'll craft an
email in Outlook to make it look exactly how I want, then forward it to my
gmail account.? Gmail has a "show original" tab that allows you to see the
full source of the email.? Copy and paste into a text editor, modify fields
to your wishes, then paste it into the DATA section as shown in irongeek's
email.? This allows you to easily imbed images (it handles all the MIME
base64 + references stuff automatically for you).

On a related note, I've noticed that if you set the MIME fields in the
email, all of the configurations of Outlook I've run into will display what
is in the DATA section of the email rather than who it is actually sent
from/to (in the MAIL FROM: and RCPT TO: sections).

Often times email servers will allow you to spoof the MAIL FROM: address
to appear to come from someone internal (MAIL FROM:
it-department at company.com), but even if they don't, you can set the From
field inside the DATA section to "it-department at company.com" and that's what
outlook will display.? You have to view the headers to realize that's not
who it came from, which of course no ever does.

These kinds of tricks are incredibly useful for social engineering.

Regards,
N

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