The ransomware deletes volume shadow copies of victims’ files - making it extremely difficult to restore encrypted data. Cryptowall, which first appeared in the wild around 2014, is a Trojan horse that hides inside the victim’s OS and adds itself to the Startup folder. Locky attacked more than 400,000 users within the first week of its detection and infects as many as 30 devices per minute. Locky, which was released in 2016, is delivered in a malicious email containing a fraudulent Microsoft Word document. Locky and Cryptowall are two notorious crypto viruses that have both done serious damage.
Once a crypto virus is installed on a victim’s computer, it encrypts a large number of files on the user’s computer, server or hard drive.
Crypto virus infections typically occur when a user clicks on a malicious link or downloads a malicious attachment delivered via email. What is a Crypto Virus?Ī crypto virus also known as the CryptoLocker virus is a type of ransomware virus that encrypts files on a compromised device and demands ransom in exchange for a decryption code. Crypto viruses frequently result in significant downtime, data loss and reputation damage for organizations. However, the cost of a crypto virus attack far exceeds the ransom paid to decrypt files. The US government estimates that over $1 billion in ransom is paid as a result of these attacks each year. Crypto virus attacks are on the rise, with roughly 4,000 attacks occurring daily.
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