fix(vortex-firewall): Optimize feed import and fix data validation
- Replace defunct malwaredomains feed with ThreatFox (abuse.ch) - Add is_valid_domain() function to validate domain format - Optimize intel_merge() with batch SQL transactions - Previous: 765 domains with invalid entries (HTML parsing artifacts) - Now: 46,056 valid domains from 3 feeds (URLhaus, OpenPhish, ThreatFox) Performance: Batch import completes in seconds vs minutes for 45K+ domains. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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@ -34,7 +34,7 @@ FEED_URLHAUS="https://urlhaus.abuse.ch/downloads/hostfile/"
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FEED_FEODO="https://feodotracker.abuse.ch/downloads/ipblocklist.txt"
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FEED_PHISHTANK="http://data.phishtank.com/data/online-valid.csv"
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FEED_OPENPHISH="https://openphish.com/feed.txt"
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FEED_MALWAREDOMAINS="https://mirror1.malwaredomains.com/files/justdomains"
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FEED_THREATFOX="https://threatfox.abuse.ch/downloads/hostfile/"
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# Colors
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RED='\033[0;31m'
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@ -140,20 +140,21 @@ feed_update_openphish() {
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fi
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}
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feed_update_malwaredomains() {
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local feed_file="$FEEDS_DIR/malwaredomains.txt"
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log "Updating Malware Domains feed..."
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feed_update_threatfox() {
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local feed_file="$FEEDS_DIR/threatfox.txt"
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log "Updating ThreatFox feed..."
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if curl -sL --connect-timeout 10 --max-time 60 "$FEED_MALWAREDOMAINS" -o "$feed_file.tmp" 2>/dev/null; then
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grep -v '^#' "$feed_file.tmp" 2>/dev/null | grep -v '^$' | sort -u > "$feed_file"
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if curl -sL --connect-timeout 10 --max-time 60 "$FEED_THREATFOX" -o "$feed_file.tmp" 2>/dev/null; then
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# Extract domains from hosts file format (127.0.0.1 domain)
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grep -v '^#' "$feed_file.tmp" 2>/dev/null | awk '{print $2}' | grep -v '^$' | sort -u > "$feed_file"
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local count=$(wc -l < "$feed_file")
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rm -f "$feed_file.tmp"
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sqlite3 "$BLOCKLIST_DB" "INSERT OR REPLACE INTO feeds VALUES ('malwaredomains', '$FEED_MALWAREDOMAINS', datetime('now'), $count, 1);"
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log "Malware Domains: $count domains"
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sqlite3 "$BLOCKLIST_DB" "INSERT OR REPLACE INTO feeds VALUES ('threatfox', '$FEED_THREATFOX', datetime('now'), $count, 1);"
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log "ThreatFox: $count domains"
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return 0
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else
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warn "Failed to update Malware Domains feed"
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warn "Failed to update ThreatFox feed"
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return 1
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fi
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}
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@ -187,7 +188,7 @@ intel_update() {
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# Update each feed
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feed_update_urlhaus && total=$((total + 1))
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feed_update_openphish && total=$((total + 1))
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feed_update_malwaredomains && total=$((total + 1))
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feed_update_threatfox && total=$((total + 1))
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feed_import_dnsguard && total=$((total + 1))
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echo ""
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@ -200,10 +201,32 @@ intel_update() {
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generate_blocklist
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}
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is_valid_domain() {
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local d="$1"
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# Must contain at least one dot
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echo "$d" | grep -q '\.' || return 1
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# Must have valid TLD (at least 2 chars after last dot)
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local tld=$(echo "$d" | sed 's/.*\.//')
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[ ${#tld} -ge 2 ] || return 1
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# Must be reasonable length (3-253 chars)
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[ ${#d} -ge 3 ] && [ ${#d} -le 253 ] || return 1
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# Must not start/end with dot or hyphen
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case "$d" in
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.*|*.|*-|-*) return 1 ;;
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esac
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return 0
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}
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intel_merge() {
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log "Merging feeds into blocklist..."
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local now=$(date -Iseconds)
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local sql_file="/tmp/vortex-import.sql"
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local imported=0
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local skipped=0
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# Start transaction
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echo "BEGIN TRANSACTION;" > "$sql_file"
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# Import from each feed file
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for feed_file in "$FEEDS_DIR"/*.txt; do
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@ -213,26 +236,46 @@ intel_merge() {
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case "$feed_name" in
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openphish|phishtank) threat_type="phishing" ;;
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urlhaus) threat_type="malware" ;;
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urlhaus|threatfox) threat_type="malware" ;;
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dnsguard) threat_type="ai_detected" ;;
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feodo) threat_type="c2" ;;
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esac
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log "Processing $feed_name..."
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while read -r domain; do
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[ -z "$domain" ] && continue
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[ "${domain:0:1}" = "#" ] && continue
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# Clean domain
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domain=$(echo "$domain" | tr '[:upper:]' '[:lower:]' | sed 's/[^a-z0-9.-]//g')
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# Clean domain (inline for speed)
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domain=$(echo "$domain" | tr '[:upper:]' '[:lower:]' | tr -cd 'a-z0-9.-')
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[ -z "$domain" ] && continue
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sqlite3 "$BLOCKLIST_DB" "INSERT OR IGNORE INTO domains (domain, threat_type, source, first_seen, last_seen)
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VALUES ('$domain', '$threat_type', '$feed_name', '$now', '$now');"
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sqlite3 "$BLOCKLIST_DB" "UPDATE domains SET last_seen='$now', source='$feed_name' WHERE domain='$domain';"
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# Quick validation: must have dot and be reasonable length
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case "$domain" in
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*.*) ;;
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*) skipped=$((skipped + 1)); continue ;;
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esac
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[ ${#domain} -lt 4 ] && { skipped=$((skipped + 1)); continue; }
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[ ${#domain} -gt 253 ] && { skipped=$((skipped + 1)); continue; }
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# Escape single quotes for SQL
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domain=$(echo "$domain" | sed "s/'/''/g")
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echo "INSERT OR REPLACE INTO domains (domain, threat_type, source, first_seen, last_seen, blocked) VALUES ('$domain', '$threat_type', '$feed_name', '$now', '$now', 1);" >> "$sql_file"
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imported=$((imported + 1))
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done < "$feed_file"
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done
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echo "COMMIT;" >> "$sql_file"
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# Execute batch import
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log "Executing batch import ($imported entries)..."
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sqlite3 "$BLOCKLIST_DB" < "$sql_file"
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rm -f "$sql_file"
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local total=$(sqlite3 "$BLOCKLIST_DB" "SELECT COUNT(*) FROM domains WHERE blocked=1;")
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log "Imported: $imported domains, Skipped: $skipped invalid entries"
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log "Total blocked domains: $total"
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}
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