You know, I REALLY wish our staff writers and editorial department would STOP making statements like "you need a strong antivirus to ward off malware" and start using accurate nomenclature, especially since so many people take them at their word.
90% of antivirus programs either DO NOT ward against malware, at all, or do so via separate modules. Antivirus is for viruses. Malware protection is for, well, just about everything else. Mostly, antivirus, malware and root kit protections are all separate factors, requiring separate modules or applications. It's true there are some all in one protections out there but even those use entirely separate definitions for detection. Otherwise, you end up with people thinking that because they have Windows Defender they are protected from malware, adware, spyware, trojans and rootkits, which of course, most traditional antivirus programs do not protect against.
In fairness, I also wish some of these companies that offer these programs would do the same, and many of them DO say they are antivirus programs but also offer protections against a variety of malware and other attack vulnerabilities. Using correct terminology would go a long way towards making sure people are actually aware and informed about what exactly the actual threats are and whether or not they actually have protection against that or other types of infections.