An advanced form of ransomware that first surfaced in September 2013, attacking individuals and companies in the U.K by arriving as an attachment in an e-mail that appears to be a customer complaint. If the attachment is opened, the CryptoLocker Trojan horse infiltrates the computer or server and encrypts all of the files on the computer with commercial-grade 2048-bit RSA encryption, at which point CryptoLocker displays a demand for money notice on the computer.
Also known as Crilock, CryptoLocker typically requires a payment of 300 Euros via digital currency payment methods such as Bitcoins of MoneyPak. The victim is often provided a limited timeframe like 72 hours in which to pay the ransomware fee or risk permanently losing their data.
If the victim does pay the ransom fee, they can expect to receive a decryption key that will restore their data and files, although there's no guarantee that the cyber criminals responsible for the particular variant of CryptoLocker will honor that promise.
CryptoLocker is also able to spread quickly and infect other computers by utilizing other bot networks like ZeuS.
Stay up to date on the latest developments in Internet terminology with a free weekly newsletter from Webopedia. Join to subscribe now.
Webopedia's student apps roundup will help you to better organize your class schedule and stay on top of assignments and homework. Read More »List of Free Shorten URL Services
A URL shortener is a way to make a long Web address shorter. Try this list of free services. Read More »Top 10 Tech Terms of 2015
The most popular Webopedia definitions of 2015. Read More »
The Open System Interconnection (OSI) model defines a networking framework to implement protocols in seven layers. Use this handy guide to compare... Read More »Computer Architecture Study Guide
Webopedia's computer architecture study guide is an introduction to system design basics. It describes parts of a computer system and their... Read More »What Are Network Topologies?
Network Topology refers to layout of a network. How different nodes in a network are connected to each other and how they communicate is... Read More »