Lösung:
Im Verzeichnis /home2/oli/pds/isdn/scripts die Datei rock_antivir wie folgt bearbeiten:
print(FILE "SyslogFacility mail\n");
print(FILE "HttpUpdateServer localhost:8119\n");
close(FILE);
chmod(0644, "/etc/avguard.conf");
system ("cp /etc/avguard.conf /etc/avupdater.conf");
ändern in
print(FILE "SyslogFacility mail\n");
print(FILE "HttpUpdateServer http://dl.antivir.de\n"); <---- !!!!
close(FILE);
chmod(0644, "/etc/avguard.conf");
system ("cp /etc/avguard.conf /etc/avupdater.conf");