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Malware entry: spam-seo.script_redirect

Description: Detected suspicious script that redirects traffic coming from search engines to third-party sites. This behavior is typical for Black Hat SEO attacks that make a compromised site rank for spammy keywords and then redirect search traffic to a third-party beneficiary site.

There are multiple types of redirect scripts. Here's one of them:

var s=document.​referrer;
if(s.indexOf("google")>0 |​| s.indexOf("bing")>0 |​| s.indexOf("aol")>0 |​| s.indexOf("yahoo")>0)

Affecting: Any web site (no specific target).