An Overview Of The Trojan Horse Computer Virus

In the world of computing, a Trojan horse is defined as a type of malware that does not reproduce itself. Although it seems to perform a desirable function, it actually facilitates unwarranted access to a computer system. This type of malware got its name from the Greek mythological character called the Trojan Horse. For a better understanding of what this virus is all about, it is good to take a closer look at the Trojan horse virus.

The Purpose of a Trojan Horse Virus

The primary purpose of a Trojan horse virus is to give hackers remote access to a targeted computer system. After it has been installed in a computer, hackers can access it right away and even perform different kinds of operations. This malware actually gives them the capacity to install other malware, steal important personal data as well as the download or upload dangerous files. Furthermore, this type of virus can crash a computer, waste computer storage space and delete important files.

Additional Facts About the Trojan Horse

According to computer experts, hackers use four basic methods to install the Trojan horse on computers. The first one is through application exploits such as messaging client, media player and web browser flaws. The second way is through email attachments. It is also possible for the virus to be found on Web sites that contain executable content like an ActiveX control. The fourth way of installing this malware is via software downloads, specifically from file sharing networks.

People can identify and remove Trojan horses with the help of antivirus software. In case a computer system is in critical condition, it is best to remove all the data found in your hard disk and then simply reinstall the required software as well as the operating system. From January to June 2009, BitDefender conducted a study that found a rising rate of Trojan-type malware.

The Different Types of Computer Viruses

Computer viruses are classified into many different types. One of the most common is called the resident virus, which is said to dwell permanently in the random access memory of computers. Examples of this type of virus are the McKlunky, CMJ and Randex. Another common type of computer virus is the polymorphic virus. Some of its examples include the Satan bug, Marburg and Elkern. Other common virus types include the logic bombs, worms and FAT viruses. It is also possible for computer users to encounter other variations like the companion viruses, file infectors and directory viruses.