Out of all of the AV protection options that I've tried on Linux Mint, have found the ESET option the easiest to use.
They also provide a .deb installer that makes things easier, some may find the need in Permissions to place a check in the box to 'Allow executing file as a program', otherwise it won't run. This is the way that I installed, long before hollowface provided a tutorial.
I do suggest to try before purchase, one gets a fully functional 30 day no-obligation Trial license, though the length of this can change at any time at the discretion of ESET. That's what I initially did, to keep from burning an activation & ensure the product suited my needs.
ESET also has first class Customer Support if needed, there's been only one time in nearly 5 years that I had to contact them & that was to ask a question, there were no issues with the software. I had purchased a 3 device license pack on promo at the Newegg site for ESET Internet Security for an unbelievable $19.99. The catch was it was in 2 year old packaging, this doesn't affect the license key inside. One can just download the Live installer, or the Full one, of the current version & then activate with that key. Have purchased four ESET packages in such a manner (3 devices) & never paid more than $24.99 shipped.
Once activated & registered on the first device with the included activation key, one will get an email with license details to install on the other computers.
I've never paid full price for any brand of security, Newegg always has low cost licenses of many brands, one a Bitdefender Sphere (unlimited devices) for $20/1 Year, that I've not seen since. That was where I also purchase my first Emsisoft Anti Malware licenses at $9.99 each (OEM packaging), an EAM CD in a white sleeve, wished I had purchased the max of five, though I did get 2 copies, never have seen that brand on the Newegg site since. Maybe it was to introduce Emsisoft to US customers.
While I have seen the ESET unilicense packages (5 devices) on promo for $39.99, never have purchased it, though for a person or family with different brands of OS's, it's a perfect fit. So was Bitdefender Sphere, only it was Windows & Mac, not Linux. Yet it served me well for a year at a fantastic cost ($100 less than the price on the Bitdefender site).
Still intend to get Sophos installed on one of my Linux installs, am working on another computer at the moment.
Hollowface-Cat- The Uprightman - I was checking out the ESET website- they are a little expensive don't you think? I have 3 -soon to be 4 computers.Can you recommend something that is not quite a hit to the wallet?
Paul, go to the Newegg site, sign up for their promo emails, and you'll get these 3-5 times weekly. More if you purchase something every now & then.
As mentioned above, I was able to get those steep discounts because I had promo codes, which we're not allowed to post on this forum, yet there's no harm in telling one how to obtain these for their personal use. Promo codes are tied to the email addresses sent to anyway, so non-subscribers can't take advantage, even if they wanted to.