Question

A type of malware which attached itself to executable files, but some can target a master boot record, autorun scripts, MS Office macros, or even in some cases, arbitrary files

Answer 1

A virus is a type of malware which attaches itself to executable files, but some can target a master boot record, autorun scripts, MS Office macros, or even in some cases, arbitrary files.

These can not only crash your devices but also damage it permanently.

Various types of virus are :

 Target Classification

 Boot-Sector Infectors

 File Infectors

 Macro Viruses