Relying on multiple infection vectors, Cryptowall managed to achieve wider presence than the infamous CryptoLocker, affecting 625,000 systems across the world in a period of about five and a half months.Recorded by Dell SecureWorks Counter Threat Unit (CTU), most of these infections were traced in the United States because of the numerous malicious campaigns targeting English-speaking users.The security researchers say that the total number of files encrypted by CryptoWall in the monitored tim…
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