Beware of Trojans

Trojans are the most dangerous among the malicious software. They have the capability of wide range of destruction of data and can even disable the software that are installed to defend the computer from trojans and viruses. As the internet became more sophisticated more and more types of trojans arosed. Hacker are responsible for the creation of trojans. Generally a trojan is masked by the author in some useful applications and allows the victim to download and use the software. The author may even declare that the use of product will not cause any harm to the computer. But the trojan attached to the software will do its job sincerely. It will send the data to the attackers computer. Using this data the attacker can validate several things including the browsing habit of the victim. Such trojans even send the private data to the attacker's computer. Some trojans kill the security software and make deals with several useful softwares like browsers for its action. Such trojan can take you to a fake site that looks like the original site and takes information like account number.

Most of the trojans were made for the purpose of spying. As many of you know that the trojan has two module: a server and the client. The sever is installed in the attacker's computer and the client is installed in the victim's computer. The client in the victim's machine send the data in the victim's computer to the server in the attacker's computer. Trojans have the capability to read the keystrokes from the victim's computer and send to the the attacker's computer. Some trojans even send the screen shot of the applications running in the victim's machine.
You can download several types of outdated trojans and easily detected by anti-trojan softwares from VX Heavens (http://vx.netlux.org/). This site also provide several viruses, worms, constructors, simulators, source codes of viruses and more...But keep in mind that making or promotion of malicious software is strictly illegal.
You can protect your system from trojans by installing the anti-trojan softwares. Today several anti-trojan softwares are available in the internet for downloading. It is always better to use a well updated anti-trojan in your system. You will get more information about trojan in http://www.anti-trojan.org/

Some useful links are given below:

http://www.anti-trojan-software-reviews.com/
Contains a survey of some of the top anti-trojan softwares

http://www.anti-trojan.org/
Gives you more information about trojans and related malicious softwares. The site also gives some anti-trojans for downloading.

http://ezinearticles.com/?How-Trojan-Virus-Threats-on-Your-Computer-Can-Put-Your-Financial-Information-at-Risk&id=1585959
This site contain an article about the trojan.