The Trojan can be defined in various ways. One common way of defining it is as a malicious software or program, which creates a back way access to the networks of the affected system. The word Trojan horse is derived from the very war and this war took place between Greeks and Trojans, where Greeks presented a huge horse containing Greek soldiers for the other. When Trojans dragged this horse into their city, the Greek soldiers who were hiding in this horse came out and conquered the troy city. So, this says that this malicious infection is a hidden program which hides at some place and gets activated after some time.

When it gets activated, it creates a way for entering into the user system and helps the intruders or hackers to conquer on the data present in users system. An important fact about Trojans is “They are auto hiding spies, who cannot be detected by most of the free trojan remover programs. They are unlike a virus because they can be detected by an security tools which are designed to find them. Virus is just like a solider facing another solider directly, but it’s not hiding anywhere so it can be trapped by the opponent. This Trojan horse is not like a virus, it hides somewhere and attacks the anti virus system without getting noticed. Compared to a virus Trojans are more dangerous because they do the things without being noticed.

As already told this horse is not like worms which get multiplied affecting the performance of users system. It creates a free public access to the attacked users system and allows his opponent to gather all the information available on his system. There are many Trojan horses in the internet, here we will discuss about the most popular Trojans which created a revolution in global history. It was in the year 2005 a popular infection called Tony Blair affected most of the popular networks in Britain.

Usually to spread this Trojan horse a hacker uses email accounts. You need a free virus protection program to remove them. He will send some word file or html document to the users, with a special name. The same thing happened in 2005. Most of the people of Britain were sent a mail which had the subject “Tony Blair’s email account has been hacked”. This mail was claimed to be coming from BBC news channel so most of the people found that topic interesting and started opening the attachment. Now you may get a doubt here, dint they have an free virus protection software to check that mail is correct or wrong? Yes, they had an free virus protection software, but as I already told an anti virus cannot detect a Trojan. So, when people opened these attachments without their notice Trojans got loaded in their system. This loaded infection made their screen black and started loading all the important data present on users system into the hackers database.

The creators of the Trojan just used the name of Tony Blair so that they can affect more people. People got trapped to this Trojan horse because; they were more interested in knowing the fact about the political situation. Besides, Tony Blair attack other codes were also used by hackers for exploiting these social networks. The main purpose of this attack was to create a mess in the people and hack the original policies website of Tony Blair. Internet is the main source for spreading these infections and you can make use of free virus protection tools to find them. People use internet for getting all the information, but hackers use the same internet for spreading deadly malicious programs for getting illegal access to members present on the internet. These Trojans are called as backdoor Trojans. They attack the local system and give a remote access to an intruder. This remote access made by the Trojan will allow that hacker to: Send and receive files, launch or delete the existing files, execute the files present on users system, display some notification, delete the data on his system, reboot the user’s machine.
 

Knowing all the information about such malicious software we can find ways of stopping illegal access to our system. Though these infectious programs are harmless to the system, they give an illegal access to our network. If you wish to stop an infection like this from accessing your network, you should know about the sources from which this Trojan can enter into your system. E-mail attachment acts as a best support for inviting a Trojan horse into your system. You can prevent this from entering to your system, by using a strong operating system. Compared to windows operating system, you can prefer usage of Linux software. This Linux has 4 levels of protection, so it does not allow the Trojan horse to enter into your computer. Other sources of these are word documents; most of the hackers prefer sending macro word documents to users system. These documents contain malicious programs which get executed when you open the word document. Running a free virus protection tool will certainly help remove it.

Some of the common Trojan horse programs used by hackers are: Downloader.Zlob, Graybird (Backdoor Graybird P, Backdoor Graybird), Live Update, Generic8.LDI, LeoSrv, TrojanDownloader.xs, Posion Ivy, Shaft, shark, Sheur. ZSQ, Strom Trojan. All these Trojans are deadly and when they enter your system, they create back link to the hackers system sending him all your id and passwords. First step you can take to prevent this Trojan horse is: You can use a spam blocker. This spam blocker will not allow this Trojan horse to enter into your system. Whenever an illegal access to your network is detected this spam blocker prevents the data from entering and exiting from your system. If you still wish to know more details of the Trojans, then go to the registry of your system. Once you go into this registry scan it to identify the evil infection.

This resides on an um important file so once you scan it you can delete the found file easily. However, you can also do this work manually by going into the task manager. When you press CTRL+ALT+DEL in windows operating system, you will see a task manager coming up, when you go into the process tab of task manager, you will find list of process running on your system. If you find any process having a large name with different extension then delete that process, so that the hacker’s connection to your system breaks away.