Trojan is a kind of virus without self-duplication feature. It will pretend to be a useful application or love computer game, attracting users to install it on PC or server computers.
Trojan Horse, Trojan in short form, and virus is a kinds of application or software that developing by human bings, belonging to computer virus. The name of Trojan comes from the Greek Mythology “Helen of Troy”. It’s the time about when the old Greek army was attacking Trojan city, but they can’t defeat. So someone used a stratagem: making a big horse, pretending it as horse of warlord, and asking the soldiers hidden in that big horse. And after that, the amry pretended as withdraw, leaving big horse alone. The people in the city considered that the Geek army was real withdraw, dragging the big horse into the city, and celebrating the victory. But in the midnight, when all the citizens came into sleep, the soldiers got out of big horse and open the gate of city. After a big fight, Geek army got the whole city.
Trojan is builtup with two parts: 1, server application; 2, client application. If you suffered Trojan, that means you got Client Application of Trojan. And the man who owns server application, he could control your computer through Internet or local network to do anything he want. And at this time, all the files, applications and accounts on your computer are naked to him.
Trojan, in fact, can’t be considered as virus. It won’t sefl-duplicate like virus, and it won’t make system crash. So some people call Trojan as Hacker Virus.
It is a kind of remote control hack tool, with crypticity and unauthorization to fast affect system files.
The crypticity means: for being detected by computer users, the Trojan vendors will use many ways to hide the Trojan, so that even if users know that they have suffered Trojan, but they can’t locate the place of it.
And Unauthorization means once the client application connects server application, server application will share almose all operation rights of that computer, including modify files, edit registry, control mouse and keyboard, etc. And these rights are not authorized by computer, but stolen by Trojan.
So if you found that your computer suddenly turn slow or lag, there is big possibility that you have already suffered Trojan or virus. Just check the article about Windows 8 Antivirus, the software that mentioned in this article will give you a free solution to clean Trojan and virus under Windows 8 or other Windows systems.
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Heya, within my 9 years of experience I can say this about protection from trojans. 1. Install a firewall initially, and do not permit every internet connection that appears, precisely what this does is ceases the trojan’s server from speaking with the hacker. Zone alarm free does perfect for this. 2. utilize the MSCONFIG function and quit weird/unwanted programs from starting up. I prefer to experiment in task manager initially and turn things off and see their affects prior to editing MSCONFIG. 3. Get proper anti-virus software on your system and never turn it off! 4. always scan files individually before opening them, specially if your installing via torrents or any other peer-to-peer program. 5. make an effort to steer clear of web-sites which contain adware and spyware, should you have zone alarm/avast installed and working together, this certainly will work. 6. appreciate surfing the net using a secure machine