A trojan virus is a type of malware that disguises itself as a legitimate program to trick users into installing it on their computers. Once installed, a trojan virus can give attackers remote access to your computer, allowing them to steal sensitive information, install additional malware, or even control your computer remotely.
Trojan viruses are one of the most common types of malware, and they can be very difficult to detect. This is because they often use social engineering techniques to trick users into installing them, such as by disguising themselves as popular software programs or by sending phishing emails that appear to come from legitimate organizations.