Trojan Horse

A Trojan Horse is a destructive program that impersonates as a harmless application. Unlike viruses, Trojan Horses do not replicate themselves, but they can be just as destructive. One of the most dangerous examples of a Trojan is a program that promises to rid your computer of viruses but instead introduces viruses into your computer.

We have all seen the advertisement pop up claiming to be able to rid your computer of some nasty virus, or even more frightening, you receive an email that claims to be alerting you to a new virus that can threaten your computer. The sender promises to quickly eradicate, or protect your computer from viruses if you simply download their ‘free’ attached software. You may be sceptical, but the software looks legitimate and the company sounds reputable. You proceed to take them up on their offer and download the software. In doing so, you have just potentially exposed yourself to a massive headache and your computer to a multitude of ailments.

When a Trojan is activated, numerous things can happen. Some Trojans are more annoying than malicious. Some of the less annoying Trojans may choose to change your desktop settings or add silly desktop icons. The more serious Trojans can erase or overwrite data on your computer, corrupt files, spread other malware such as viruses, spy on the user of a computer and secretly report data like browsing habits to other people, log keystrokes to steal information such as passwords and credit card numbers, phish for bank account details that can be used for criminal activities, and even install a backdoor into your computer system so that they can come and go as they please.

To increase your odds of not encountering a Trojan, follow these guidelines:

* Remain diligent. Trojans can infect your computer through rogue websites, instant messaging, and emails with attachments. Do not download anything to your computer unless you are 100 percent sure of its sender or source.

* Ensure that your operating system is always up-to-date. If you are running a Microsoft Windows operating system, this is essential. IT Support Articles

* Install reliable anti-virus software. It is also important that you download any updates frequently to catch all new Trojan Horses, Viruses, and Worms. Be sure that the anti-virus program you choose is capable of scanning e-mails and e-mail attachments.

* Consider installing a firewall. A firewall is a preventative measure that restricts unauthorized use and access to your computer. A firewall is not going to eliminate your computer virus problems, but when used in conjunction with regular operating system updates and reliable anti-virus software, it can provide additional security and protection for your computer.

Nothing can guarantee the security of your computer 100 percent. However, you can continue to improve your computer's security and decrease the possibility of infection by consistently following these guidelines.

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