Here is Liu Die Yu's post to bugtraq explaining this issue.
All mentioned resources can be found at Umbrella.MX.TC
This file is collected and re-edited by Umbrella.MX.TC

________________________[FILE START]________________________

HijackClick: 1+1=2.
("that's all" is end of file if you are in a hurry)

[tested]
Browser Ver
{
MS Internet Explorer: 6.0.2600.0000.xpclnt_qfe.021108-2107;
Encryption: 128-bit;
Patch:; Q810847;
}
(So, it's far from fully patched.)
OS Ver: "Windows XP Cn ver"

[demo]
(POF VER)
http://www.safecenter.net/liudieyu/HijackClick/HijackClick-MyPage.HTM
or
http://umbrella.mx.tc
---> HijackClick section
---> HijackClick-MyPage file

(ATTACK VER)
http://www.safecenter.net/liudieyu/HijackClick/HijackClick2-MyPage.HTM
or
http://umbrella.mx.tc
---> HijackClick section
---> HijackClick2-MyPage file

[exp]
dragNdrop!
for image, it copies file.
for link, it creates shortcut.

but, some guy is lazy.
he moves the window instead of the mouse.
then a click event(mousedown&mouseup) becomes mousedown&mousemove&mouseup == dragNdrop.

then "POF VER" in the "[demo]" section shows a click indeed can be transformed into a dragNdrop.
then "ATTACK VER" in the "[demo]" section drags my homepage to your favorite list.

[how]
special thanks to:
the lazy guy mentioned in the "[exp]" section:
his handle is "jelmer";
and his great invention "internet explorer local file reading";
and myself :-)

for some trivial work.

[greetings]
the Pull, dror, guninski, http-equiv, jelmer and "Friedrich L.Bauer".
of course, mom and dad.

best wishes

-----
from http://Umbrella.MX.TC on http://SafeCenter.NET