How to disable clamscan?

I have OOM happening all the time on MySQL and bringing sites down. Cant figure out why, what account. Trying to reduce memory usage.

Sometimes clamscan is top of the list for CPU. Its also listed in dmesg as killed by OOM.

I dont have any email on the server, I want to disable clamscan see if it helps with memory. But there is no clamscan, or anything to do with spam, or av, anti-virus listed in Bootup and Shutdown. No servers are using spam or virus filters. If I do a service clamscan status it says "Unit clamscan.service could not be found"

So how do stop this clamscan process??!

Thanks!