The most widespread botnet in history, ZeuS is a Trojan horse that infiltrates computers in order to steal data by logging keystrokes and spread copies of itself to other devices via instant messaging and e-mail messages. Computers infected by a ZeuS variant can be controlled by the attacker and monitored for keystrokes in order to gain access to online accounts and other sensitive data.
More than 50,000 variants of the ZeuS Trojan have been recognized since ZeuS made its first known appearance in 2007. The most prolific period for ZeuS came in 2009 and 2010, with some security reports estimating as many as 3.6 million ZeuS-infected computers in the United States alone during that time.
Several mobile botnet variants of the ZeuS Trojan have surfaced more recently, with some targeting Google Android phones while others attack Blackberry devices, Symbian phones, or Windows Mobile phones. These variants are considered part of the Zitmo family of mobile malware and are designed to steal the mobile transaction authentication numbers that banks use to strengthen security for logging in to online accounts.
(1) A computer that has been implanted with a daemon that puts it under the control of a malicious hacker without the knowledge of the computer owner. Zombies are used by malicious hackers to launch DoS attacks. The hacker sends commands to the zombie through an open port. On command, the zombie computer sends an […]
The word zone is used to mean any area that is separated from another, or is distinguished from another based on distinctive circumstances. In computers, networking and the Internet, the meaning of the word zone changes depending on the specific environment. Some common meanings of the word zone include the following: Domain Name System (DNS): […]
- zone file
A file on a root server that contains domain name registration information. Zone files contain information necessary to resolve domain names to IP addresses and contains all information related to one domain. Zone files are also called master files.
- zoned CLV
Short for zoned constant linear velocity, a type of CLV data read/write method that separates a CD or DVD compact disk into different fixed-speed zones and changes the speed of rotation for each zone instead of across the entire disk.
- zoned-bit recording
)A method of recording data on a hard disk drive whereby the sectors per track on the drive are not consistent across the platter. In general, tracks closest to the center have fewer sectors than tracks toward the outside of the platter where the tracks are larger and can fit more sectors. Though the platter […]