/var/log/clamd.log {
    olddir /var/log/archiv
    create 640 clamav root
    postrotate
        /bin/killall -HUP clamd
    endscript
}

/var/log/freshclam.log {
    olddir /var/log/archiv
    create 640 clamav root
    postrotate
        /bin/killall -HUP clamd
    endscript
}