Good Antivirus / Malware that can be deployed remotely / cloud

Take a look at trend, it's hitting a number of your requirements, however it's not cheap.

https://www.trendmicro.com/en_gb/small-business/worry-free-services.html

Regards,
Alex

almost all AV services are avail on cloud... Mcafee, Symantec, Kaspersky etc.

Sophos as well performing good with excellent management protal   mostle you can try 30 days trial...

some of the AV products comes with add on features like in mcafee... you can choose a basic bundle and add on the other security packages to it... depends up on your requirements...

sugegest try once before purchase...

all the best

do they all require an agent installed on the pc
how can this be installed without visiting the site?

just a single web link - doubleclick will do all - it's a simple ..users can do at their own... all the best

so sophos trend kaspersky etc all a web link?
and this will uninstall the old client?

for more details ex: sophos

you can check
https://community.sophos.com/kb/en-us/119265
https://community.sophos.com/kb/en-us/127044

additionally there are sripts you can embed with weblink which will uninstall the install old antivirus and install the new one ..

its pretty simple...

all the best

No it won't uninstall the old client, you'd need to either do it manually or script it.


Regards,
Alex

P.S

@echo off
setlocal enabledelayedexpansion

set GUIDs=DDF96E66-E39B-4A69-B776-2DE49EBCAFBD D7D3F00A-638B-41DE-A2A3-FFC6EF034783 B1A6CB20-C032-4228-940F-AC3BC9BF6B3E 3EB41C0B-00EF-4C8B-9FF7-FF252E2F4E33 D8A08493-2F06-4EB2-A636-4392991981AB 
for %%a in (%GUIDs%) do (
     reg.exe query "HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{%%a}" >NUL 2>&1
      if not errorlevel 1 (
            echo Uninstalling %%a
            start "Uninstalling %%a" /wait msiexec.exe /X{%%a} /quiet
      )
)

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Use that and modify it with the GUID of your own software, it's a batch script

whats the view on AVG now a days?

This exact question was covered recently in an article published on GetApp and gives a few examples of available solutions, their features and other recommendations. Apps mentioned are Avast Business, AVG Business Edition, Imperva Incapsula, Webroot SecureAnywhere, McAfee, OmniShield. You can find the article here: https://lab.getapp.com/endpoint-security-vs-antivirus/

First of all, you SHOULD have antivirus.  BUT, it ALL SUCKS.  Upload malware to VirusTotal and  watch 50-90% of the products out there miss the malware.  And try different malware and watch as the amount miss, but DIFFERENT ones.  Antivirus is a layer, not a cure-all.  (Not saying you believe otherwise, but making sure you don't forget this nor does anyone else reading the question.

I would suggest you use whatever software is included with your RMM if you want management.  If you don't need management, Windows Defender is fine.  I use SolarWinds MSP tool and it includes BitDefender.  Easily deployed.