Do the Anti-malware Companies really want to stop the malware?
Sadly, I will have to say that with ONE exception it is a no.
A simple test of their products that only one company passed.
I went looking for any home version of their products that would run on any operating system other than windows. After all, while the Macs, GNU-Linux, openBSD, freeBSD, netBSD, pcBSD, desktopBSD, Solaris, HP/UX, Aix … based systems cannot get damaged by the windows viruses, the people using them do send files to people using windows. Those files can contain malware, that the sender doesn’t know about. How could they know? it is next to impossible to find anti-malware software for home desktops, the most likely source for infected files to be transmitted to people on the vulnerable windows.
The options for Anti-virus for home users of these operating systes are two.
1) clam av, which unfortunately according to the latest testing results I know of, is only 43% effective.
2) AVG from Grisoft. They do have their proprietary, sale version only, software available for windows, macos and linux. They do have the avgfree for windows, but not for the other operating systems.
How did I run my little test? I contacted those AV companies that want people to contact them. [ no sign-up for membership / registration of product required to contact them, which is why Symantec / Norton weren't contacted. ]
McAfee never responed.
Comodo never responded.
AVG did, since I couldn’t find anything but windows links before contacting them.
Kaspersky did, when I complained they sent me a trial version link for windows and I don’t have windows. 
[ but Kaspersky's Linux version is the over-priced Corporate version, not a home system product so it's not actually one to be included as for home users. ]
Trend Micro, no way to cotact them via their website.
Since most of the AV companies have shown they want you to be at risk, if you are using windows, give your support to the one company that has shown they want to actually stop the malware completely. If you are running a Mac of Linux system, support responsible sofwtare companies that really do show they want to do the job right. The companies with all versions of their product available for more operating systems than windows.