A couple of weeks ago I wrote about the WMF Exploit that affected users of Microsoft Windows and would allow for mal-ware to be installed by simply viewing a malicious picture file. E-Week this morning has uncovered a story that this exploit was selling on via the "underground" a full two weeks prior to the exploit being publicly noticed. The exploit first uncovered by people who produce malicious code was up for auction a couple of weeks before anti-virus vendors were aware there was a problem.
For $4000 a spy-ware distributor could buy the exploit code
and then have the perfect vehicle to distribute his or her wares. According to
the article the exploit was first purchased in early December and days later it
was on the web infecting random machines. Luckily the people who discovered the
vulnerability were unaware of its full potential and thus only the exploit code
was up for sale. If they had taken the time to develop a proof of concept this
could have been much worse. As it was according to the eWeek article the lead
time that the spy-ware distributor who purchased this exploit code enabled him
or her to infect thousands of computers with over a 1000 exploited image files
found online.



