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Malvertising campaign delivers digitally signed CryptoWall ransomware

Lucian Constantin | Sept. 30, 2014
The cybercriminals behind the CryptoWall ransomware threat have stepped up their game and are digitally signing new samples before using them in attacks in an attempt to bypass antivirus detection.

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.


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