Hi there Nop it wont work.
http://dams083.free.fr/tmp/putty.exe?explorer.exe the first .exe extension will be overwriten by the second one . then it will be putty.exe anyways. "avivra" did mention that he was able to use this bypass to automate the PDF attack vector found by GNUCitizen's pdp http://aviv.raffon.net/2007/10/15/BackFromTheDead.aspx he also did mention that cyber_flash found the same kind of vuln on IE6 sp2 3 years ago. thanks to him for theses precisions. i was also able to reproduce the pdp(gnucitizen) pdf 0days remotly without any promt with IE7 using the avivra idea/exemple showed on his video here's a live exemple: http://dams083.free.fr/pdf_poc.exe?1.pdf pdf is open , calc.exe is launched no promt . we can imagine the impact with a: -permanent Xss -malicious webpage -worm -etc regards laurent gaffié //sorry for the delay.
