Malware refers to any computer program designed to surreptitiously enter a digital device. The action carried out by malware code is referred to as a$($n$)$

Select

or payload. There are several types of malware. A computer

Select

is a set of self$-$replicating program instructions that surreptitiously attaches itself to a legitimate

Select

file on a host computer. This type of malware spreads when people exchange infected files on CDs$,$ as email attachments, and via downloads. They can also be inadvertently obtained from unauthorized app stores. Through a process called side$-$

Select

$,$ an app from a source other than an official app store is installed on a device. Modern

Select

are used to hide malicious code by replacing parts of the operating system with modified code. A computer

Select

is a self$-$replicating, self$-$distributing program designed to carry out unauthorized activity on a victim$$s device. They are usually

Select

executable programs that can spread themselves from one device to another without any assistance from victims.

Select

are a type of standalone malware that masquerades as useful utilities or applications, which victims download and install unaware of their destructive nature. Antivirus software is a type of utility software that looks for and eradicates malware by watching for virus

Select

or through a$($n$)$

Select

analysis that examines the behavior of suspicious files. When antivirus software detects malware, it can try to remove the infection, put the file into

Select

$,$ or simply delete the file. Antivirus software is an essential security tool. It should be installed, properly configured, and updated regularly.