Thursday 12 January 2012

what is a trojan and how to protect your computer from trojans


A Trojan horse, or Trojan, is software that is intended to perform, simultaneously, a desirable (expected) effect and a covert (unexpected) effect. Trojan horses can make copies of themselves, steal information, or harm the computer system. The term is derived from the Trojan Horse story in Greek mythology.
Symtoms of trojan in the system-mouse is blinking ,cd tray comes out on its own,computer is running slow,lot of services are executed on the computer .
Some of the common trojan are –beast trojan ,dancing pigs trojan,file sharing trojan etc
Trojan horses in this way require interaction with a hacker to fulfill their purpose, though the hacker need not be the individual responsible for distributing the Trojan horse. It is possible for individual hackers to scan computers on a network using a port scanner in the hope of finding one with a malicious Trojan horse installed, which the hacker can then use to control the target computer.[2]
A recent innovation in Trojan horse code takes advantage of a security flaw in older versions of IE explorer and Google Chrome to use the host computer as an anonymizer proxy to effectively hide internet usage. The hacker is able to view internet sites while the tracking cookies, internet history, and any IP logging are maintained on the host computer. The host computer may or may not show the internet history of the sites viewed using the computer as a proxy. The first generation of anonymizer Trojan horses tended to leave their tracks in the page view histories of the host computer. Newer generations of the Trojan horse tend to "cover" their tracks more efficiently. Several versions of Slavebot have been widely circulated in the US and Europe and are the most widely distributed examples of this type of Trojan horse.

In oder to remove or protect the computer from getting infected from these trojan the best way is to have the best technical support because when ever a virus or a trojan comes into the computer they try to block the security software that is deployed in to the computer.
We in techbuddies maually check each and every part of the computer pannel that might contains theses virus
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Techbuddies is an online technical support for all kind of computer problems.In techbuddies we support all kind of products like Microsoft office,windows 7,Windows vista,virus removal,printer problem,router setup
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