Troj/JSRedir-R accounts for some 42% of all malicious infections found on websites in the last seven days. It is six times more often than its nearest rival, Mal/Iframe-F, which is just 7% of the time. The malware is hidden behind obfuscated JavaScript, loading malicious content from third-party sites without the users knowledge. High traffic websites which have been hit by the attack include the highly unpleasant 2 Girls 1 Cup and gumblar.cn.”]
Source: https://grahamcluley.com/malicious-jsredir-javascript-biggest-malware-threat-web/