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Cryptolocker: UK SMEs warned that vicious ransom Trojan is targeting them

John E Dunn | Nov. 19, 2013
Large numbers of UK SMEs are being targeted by a major spam campaign pushing the vicious Cryptolocker ransom malware using plausible-looking targeted attachments, the National Crime Agency (NCA) has warned.

Basic protections include having recent secure and structured backups (not synchronised cloud backups, which could simply make things worse), and even resetting the PC's clock to delay the countdown timer. Another angle is using software restriction policies.

The most important advice is not to wait for official organisations such as US-CERT and the UK's NCA to warn of malware; the latest alert is worth paying attention to but is weeks later than it should have been.

UK security expert Graham Cluley has published an excellent summary of Cryptolocker and a link to Bleepingcomputer's must-read FAQ.


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