ClamAV is an open source (GPLv2) anti-virus toolkit.
Dockerized open source antivirus daemons for use with
- file sharing containers like Nextcloud or
- to use it via a REST proxy like @solita made clamav-rest or
- to directly connect to clamav via TCP port 3310
Link for Docker
https://hub.docker.com/r/mkodockx/docker-clamav