“Thousands of WordPress sites distribute malware via Visitor Tracker code ‘

Sep

18

2015

Last week, thousands of WordPress sites hijacked with the aim of spreading via visitorTracker_isMob code malware, security firm Sucuri claims after investigation. Visitors to the sites will be diverted to a site with the Nuclear Exploit Kit.

According to Sucuri malware campaign began two weeks ago, but has since Tuesday to see a huge increase in the number of infections. It is not clear how the WordPress sites are infected, probably proceeds via vulnerable plugins, as is more common.

Criminals visitorTracker_isMob add code to all javascript files on hijacked sites. Through a backdoor to browsers of site visitors then forced to load an iframe of a page with the Nuclear Exploit Kit.

Sucuri claiming thousands of contaminated sites have found, of which 95 percent WordPress is running, so you might also site with a different CMS vulnerable. The security company recommends WordPress users to update their plugins to the latest version. Through a site check administrators to monitor whether their site is infected.

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