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Definition Edit

CryptoWall (also CryptoWall2) is a

virus [that] encrypts files on a computer's hard drive and any external or shared drives to which the computer has access.[1]

Overview Edit

The malware "directs the user to a personalized victim ransom page that contains the initial ransom amount (anywhere from $200 to $5,000), detailed instructions about how to purchase Bitcoins, and typically a countdown clock to notify victims how much time they have before the ransom doubles. Victims are infected with CryptoWall by clicking on links in malicious e-mails that appear to be from legitimate businesses and through compromised advertisements on popular websites. According to the U.S. CERT, these infections can be devastating and recovery can be a difficult process that may require the services of a reputable data recovery specialist."[2]

"CryptoWall is primarily spread via spam email but also infects victims through drive-by downloads and malvertising."[3]

References Edit

  1. Ransomware on the Rise: FBI and Partners Working to Combat This Cyber Threat
  2. Id.
  3. How to Protect Your Networks from Ransomware, at 7.

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