Gumblar Exploit is the Most Prevalent Web Threat
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%.
“Typically, JSRedir-R is found on legitimate websites, hidden behind obfuscated JavaScript, loading malicious content from third-party sites without the user’s knowledge. In the below case, the obfuscated script tries to download dangerous code from a site called gumblar.cn,” Graham Cluley, Sophos’ senior technology consultant, explains.
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