What is a trojan virus?
A trojan virus, also known as a trojan horse virus, is malware that appears to be useful or legitimate but can compromise computer security and cause much damage.
How do I get a trojan horse virus?
A common scenario is that a person receives what looks like a perfectly legitimate e-mail or computer update, often from a trusted source. When the user tries to open the file, it appears that nothing happens. In fact, they may have installed a trojan horse on their hard drive.
What does a trojan virus do?
The affects of a trojan virus can vary; some trojans are simply a nuisance and do mischief like changing your desktop icons or changing other visual features. Other trojans are designed to destroy computer files, folders and programs.
Trojans also may create backdoors. A backdoor virus gives hackers access to that computer. In this way, cybercriminals can obtain your personal and confidential data.
How is a trojan different from a computer virus or worm?
Often, a trojan is categorised in the same way as a computer virus or worm virus. This is because these three types of virus software can harm a computer’s data or performance.
However, unlike a computer virus and worm virus, trojans do not replicate.
How do I stop a trojan virus?
If you know you have a trojan virus, such as Trojan-Ransom.Win32.Rector or Trojan-Spy.Win32.Zbot, use Kaspersky’s virus removal tools to get rid of it.
Trojans are attached to computer programs. You should always be wary of which programs you download to your computer. However, the best way to a stop trojan virus is to protect yourself against them in the first place.
Start by downloading internet security software or antivirus software from a leading, experienced security software company such as Kaspersky Lab.