Tag: extortion

CryptoLocker, ransomware and holding the internet hostage

Submitted by Charlton Stanley, Guest Blogger

“I am regularly asked what the average Internet user can do to ensure his security. My first answer is usually ‘Nothing; you’re screwed’.”
   – Bruce Schneier

cryptolockerThe quote by Professor Bruce Schneier at the top of this article is the unvarnished truth by one of the leading internet and cryptography experts in the world. Which brings us to the subject of this story. The latest threat to everyone’s computer is a form of malware called “Ransomware.” This is not new, having first appeared years ago. Those first attempts were clumsy, the software codes easily broken, and the perpetrators caught. However, in the past few weeks the threat is back, more sophisticated and more dangerous than almost any malware threat to date. Although often referred to as a virus, it is not a true computer virus, because it does not self-propagate. It is a Trojan. Ransomware does not try to steal your files, passwords or photographs. Rather, it holds them hostage until you pay a ransom. There are several ransomware viruses going around, but CryptoLocker is the one getting the most media attention. How it works is this; you click on a file that may have arrived by email. Sometimes it will arrive by clicking on a web page link. Possibly a PDF of some business letter or report. Shortly after clicking an infected link, the image at the left appears. You will have no warning until it is too late. When the warning box appears, your files are already encrypted.  Follow me over the flip to see the message:

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