নিচের কোনটি কম্পিউটার প্রোগ্রাম?

Computer virus, a portion of a computer program code that has been designed to furtively copy itself into other such codes or computer files. It is usually created by a prankster or vandal to effect a nonutilitarian result or to destroy data and program code or, in the case of ransomware, to extort payment.

Source: Britannica