sync: Update malware-scanner with individual installer functions and fallback download sources

modules/security/malware-scanner.sh

@@ -222,8 +222,20 @@ install_all_scanners() {
                 echo -e "${GREEN}✓ ClamAV already installed (cPanel)${NC}"
             else
                 echo "  → Installing via cPanel package manager..."
+
+                # Check if cPanel scripts exist before using them
+                if [ -f "/scripts/update_local_rpm_versions" ] && [ -f "/scripts/check_cpanel_rpms" ]; then
                     /scripts/update_local_rpm_versions --edit target_settings.clamav installed 2>/dev/null || true
-                /scripts/check_cpanel_rpms --fix --targets=clamav 2>&1 | tail -3
+                    if ! /scripts/check_cpanel_rpms --fix --targets=clamav 2>&1 | tail -3; then
+                        # cPanel scripts failed, fall back to standard yum
+                        echo "  → cPanel package manager unavailable, trying standard yum..."
+                        yum install -y clamav clamav-update 2>&1 | grep -E "Installing|Installed|already" || echo "  (installation in progress)"
+                    fi
+                else
+                    # cPanel scripts don't exist, fall back to standard yum
+                    echo "  → cPanel tools not available, using standard package manager..."
+                    yum install -y clamav clamav-update 2>&1 | grep -E "Installing|Installed|already" || echo "  (installation in progress)"
+                fi
             fi
             # IMPORTANT: Don't fall through to standard yum - cPanel packages conflict!
         elif [ -f "/usr/local/psa/version" ]; then
@@ -2307,8 +2319,8 @@ show_scan_menu() {
     fi
 
     # Build reference database once for the entire menu session
-    if command -v build_reference_database &>/dev/null; then
+    if command -v db_ensure_fresh &>/dev/null; then
-        build_reference_database 2>/dev/null || true
+        db_ensure_fresh 2>/dev/null || true
         clear
     fi