malware vs computer software

malware and computer software both are nouns.

Word	Noun	Adjective	Verb	Adverb
malware	Yes	No	No	No
computer software	Yes	No	No	No

As nouns, computer software is a hypernym of malware; that is, computer software is a word with a broader meaning than malware:

malware: malicious software, designed to break into a system
computer software: (computer science) written programs or procedures or rules and associated documentation pertaining to the operation of a computer system and that are stored in read/write memory

Other hypernyms of malware include package, software, software package, software program, software system.

malware (noun)	computer software (noun)
malicious software, designed to break into a system	(computer science) written programs or procedures or rules and associated documentation pertaining to the operation of a computer system and that are stored in read/write memory