Security experts working in conjunction with US Law Enforcement have defeated the most sophisticated ransomware variant produced. Experts that analysed the Trojan were surprised by the quality of the encryption implementation as it was using commercial grade 2048 bit RSA encryption. This is believed to be the first time that a Trojan had used cryptology properly. Ultimately the team realised that Cryptolocker could not encrypt data unless it was connected to a legitimate domain where it could retrieve the encryption key even if it had already infected a targeted machine. The Trojan employed a domain generation algorithm (DGA) that created random domains based on the time of day. The team the
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