Yup ReadNotify, webbugs the documents/email . In addition to using
simple 1x1 pixel img they also a small wav file with very low volume.
This way if you mail ready is blocking images , the wav file might
still do the trick.
Below is HTML src that readnotify embeds in your emails: See for .gif
and .wav file.
---------------------------------
<br><Img moz-do-not-send="true" border=0 height=1 width=3 alt="" lowsrc=""
Src=http://www.0cseaut9.ReadNotify.com/nocache/0cseaut9/footer0.gif><Img
moz-do-not-send="true" Border=0 Height=1 Width=2 Alt=""
Lowsrc=http://www.readnotify.com/ca/rspr47.gif ><BgSound volume=-10000
Alt='' Lowsrc=""
Src=https://tssls.0cseaut9.ReadNotify.com/nocache/0cseaut9/rspr47.wav>
---------------------------------
On 1/24/06, Ansgar -59cobalt- Wiechers <bugtraq@planetcobalt.net> wrote:
readnotify.com is a so-called e-mail tracking service. Their subscribers
send their mail to them (by adding ".readnotify.com" to the recipient's
address) and they prepare a specially crafted mail from it and send it
to the recipient on the subscribers' behalf. In the default case the
tracking is done through HTML and webbugs. Have your mail clients
--
Saqib Ali, CISSP
http://www.xml-dev.com/blog/
"I fear, if I rebel against my Lord, the retribution of an Awful Day
(The Day of Resurrection)" Al-Quran 6:15
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