The correct answer is Trojan horse.A Trojan Horse Virus is a sort of malware that disguises itself as a genuine programme and downloads into a computer.An attacker will often employ social engineering to embed harmful code within genuine applications in order to acquire system access with their programme.Unlike computer viruses, a Trojan horse cannot manifest by itself, so it needs a user to download the server-side of the application for it to workTrojan horse is usually camouflaged as an attachment in an email or a free-to-download file before being downloaded and installed on the user's device.After being downloaded, the malicious code will carry out the objective for which it was created, such as gaining backdoor access to corporate systems, spying on users' internet activities, or stealing sensitive data.Additional InformationA target programme is a computer programme that has been entirely compiled and is ready to run.A backdoor is any method that allows authorised and unauthorised users to bypass typical security measures and achieve high-level user access (also known as root access) to a computer system, network, or software application.