For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:wusel1007/openSUSE_Tumbleweed/home:wusel1007.repo
zypper refresh
zypper install ClamAV-GUI
For openSUSE Slowroll run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:wusel1007/openSUSE_Slowroll/home:wusel1007.repo
zypper refresh
zypper install ClamAV-GUI
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:wusel1007/15.6/home:wusel1007.repo
zypper refresh
zypper install ClamAV-GUI
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:wusel1007/15.5/home:wusel1007.repo
zypper refresh
zypper install ClamAV-GUI
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:wusel1007/15.4/home:wusel1007.repo
zypper refresh
zypper install ClamAV-GUI