Trojan virus is a small malicious program that is hidden within other programs. They look innocent from outside but contain malicious programs within them and hence these programs are also called Trojan horse with reference to the classical Greek literature. In most cases, Trojans are delivered to the victim's computer, without the knowledge of the user, as executable files, usually through email attachments, chat lines, files transfers through FTP and so on. The most common source of Trojan infection is through freeware or shareware programs, free MP3s and movie downloads. These are freebies on the net that easily attract the netizens and they unknowingly download the files that when executed install the Trojan horse in the system.

There are different types of Trojan horses used for different purposes. Some of the most well known Trojans are AIDS, Back Orifice, Back Orifice 2000, Beast Trojan, Bifrose, Acojonaor, AIM Spy, Ambush, Aqua, VMLFILL and so on. Trojan virus can be used for erasing data or copying or overwriting data of the infected computer's HDD, encrypting and corrupting system files and data files, uploading and downloading bulk materials, installing other malicious software like spyware, virus, phishing software, retrieving email addresses, passwords and credit card numbers.

As the Trojan virus disables the anti virus software of the system, it becomes impossible to protect the system from Trojan. The easiest way of removing the Trojan horse virus from the system is to completely format the hard drive and reinstall the operating system and other software. But Trojan attacks are so common these days that it is impossible to carry our clean installation every now and then. Especially with so much vital information on the disk it is not really a viable solution. Again, you can reinstall the system only when you will be aware of the existence of the Trojan horse virus in the system. Once your system is infected it takes time to discover the existence of the Trojan and this is not really good for your security and safety.

Another effective solution for removing the Trojan virus from your computer is the Trojan horse removal software. The Trojan remover software scans the system for the Trojans and removes them immediately when found. You can schedule the scanning process and it automatically removes the harmful Trojans and keeps your system clean and safe from any threats. So, for safer computing get a Trojan remover and stay protected.