Malvertising campaign delivers digitally signed CryptoWall ransomware

http://www.pcworld.com/article/2688992/malvertising-campaign-delivers-digitally-signed-cryptowall-ransomware.html

 

"In order to protect themselves against malvertising and drive-by download attacks in general users should keep the software installed on their computers up to date, especially the Web browsers and their plug-ins. They should also enable click-to-play for plug-in based content if the feature is available in their preferred browser."