Malware analysts from security vendor Sophos warn that the number of pages infected with the Gumblar malcious script has recently sky-rocketed, putting the exploit at the top of the list of Web threats. The impact of the previous record setter Mal/Iframe-F now dwarfs in comparison.

According to Sophos, Troj/JSRedir-R, otherwise known as the Gumblar exploit, after the rogue domain it points to, amounts to a whopping 42% of all infections on the Web today. Mal/Iframe-F occupies the second place, its number of infections being six times lower and accounting for only 7%.test