What Is Trojan Software?

There are several types of malicious software, including viruses, worms and trojans. Trojans can be extremely destructive and thus should be removed from your computer as soon as they are identified.

  1. Definition

    • Trojan software refers to a malicious program that disguises itself as a useful program.

    Trojan vs. Virus

    • The main difference between a trojan and a computer virus is that trojans do not replicate and spread themselves from computer to computer. For a trojan to infect a computer, it must be downloaded voluntarily.

    Types

    • The types of trojans are based on what malicious task they are designed to complete. These include Password Sending Trojans, Keyloggers, Destructive Trojans and Software Detection Killers.

    Examples

    • Some common trojans include Infostealer.Ebod, IACommand, Rustock DS, Destroyer Trojan, System Antivirus 2008 and Trenderdia.

    Removal

    • Trojans can be removed automatically using an antivirus program. Alternatively, trojans can be removed manually by removing the processes, DLLs, registry entries and files associated with them.

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