With new malware, you have to pay to get your files back
CryptoLocker, a nasty new piece of malicious software, is infecting computers worldwide—encrypting important files and demanding a ransom to unlock them.
According to global digital security company Sophos, the malware has been hitting pretty hard for the past six weeks or so.
"It systematically hunts down every one of your personal files—documents, databases, spreadsheets, photos, videos and music collections—and encrypts them with military-grade encryption, and only the crooks can open it," said Chester Wisniewski, a senior security advisor at Sophos.
Your computer, even though it's infected, keeps working normally; you just can't access any of your personal files. It's scary, especially if you haven't backed up your data.
"Cybercrime is evolving as the bad guys get smarter and use newer technologies," said Michael Kaiser, executive director of the National Cyber Security Alliance. "They're always looking for new ways to steal your money."
CryptoLocker is different from other types of "ransomware" that have been around for many years and that freeze your computer and demand payment. Those can usually be removed, restoring your access to files and documents.
But CryptoLocker encrypts your files. There's only one decryption key, and the bad guys have that on their server. Unless you pay the ransom within three days, that key will be destroyed. And as the message from the extortionists says, "After that, nobody and never will be able to restore files. …"
The typical extortion payment is $300 or 300 euros paid by Green Dot MoneyPak, or for the more tech-savvy, two bitcoins, currently worth about $400.
To instill a sense of urgency, a digital clock on the screen counts down from 72 hours so you can see how much time is left before that unique decryption key is destroyed.
One victim described his anguish in an online post: "The virus cleverly targeted … all of our family photos, including all photos of my children growing up over the last 8 years. I have a distraught wife who blames me!"
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