The Cryptolocker is a ransomware known to have been used in many Internet attacks, at times, with the United States government to finally halt the activities of hackers.
However, a clone Cryptolocker has emerged called Cryptowall and has already been used in attacks that have already damaged thousands of computers.
Until now infected 625,000 computers have been committed by hackers amounted to 5.25 billion files, just like the Cryptolocker work, but with the difference that the Cryptowall can infect files on cloud servers such as Dropbox and Google Drive.
The way it works is that Cryptowall each file it infects, and it incorporates a different decryption key, so that only he knows the keys (ie the attacker) is able to unlock the current file.
This, in simple terms means that users unlucky to release their records should make Bitcons authors of the value of $ 500 in real money.
The techniques that activate the Cryptowall, varied as they may be through spam or through contaminated sites from which unsuspecting users download files carrying dangerous ransomware.
To protect users must install an antivirus program, a firewall to be turned on and be very careful with e-mails from unknown senders.
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