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- uphiago/recon-skills
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- 2026년 7월 29일 23:32
- 감지된 SKILL.md 언어
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설치 방법
기본적으로 소스를 먼저 확인하는 Prompt가 선택됩니다. 직접 명령으로 전환하거나 로컬 사본을 다운로드할 수도 있습니다.
소스 파일 검토
설치 여부를 결정하기 전에 SKILL.md와 SkillsMP에 표시된 보조 파일을 읽어 보세요.
메뉴
기본적으로 소스를 먼저 확인하는 Prompt가 선택됩니다. 직접 명령으로 전환하거나 로컬 사본을 다운로드할 수도 있습니다.
설치 여부를 결정하기 전에 SKILL.md와 SkillsMP에 표시된 보조 파일을 읽어 보세요.
Codex 또는 Claude로 설치 이 Prompt를 복사해 Codex, Claude 또는 다른 어시스턴트에 붙여 넣으면 Skill 페이지를 검토하고 설치를 진행할 수 있습니다.
직접 명령은 검토 Prompt를 거치지 않습니다. 실행하기 전에 소스를 확인하세요.
npx skills add https://github.com/uphiago/recon-skills --skill subdomain-enumeration명령은 한 줄로 유지됩니다. 복사하기 전에 가로로 스크롤해 전체 내용을 확인하세요.
로컬 사본을 원하시나요? SkillsMP에서 현재 제공할 수 있는 파일을 다운로드하세요.
SOC 직업 분류 기준
SKILL.md 표시 중
| name | subdomain-enumeration |
| description | Map subdomains via crt.sh and subfinder at recon kickoff. |
| version | 1.1.0 |
| revision_date | "2026-07-25T00:00:00.000Z" |
| license | MIT |
| platforms | ["linux"] |
| compatibility | Requires curl, subfinder, httpx, dnsx, dig, jq |
| tags | ["recon","subdomain","DNS","crt.sh","asset-discovery"] |
| category | recon |
| related_skills | ["wp-mass-recon","staging-subdomain-hunt","deep-invade","recon-playbook"] |
Comprehensive subdomain discovery using certificate transparency logs (crt.sh), DNS brute force, and passive sources. The first step in any recon pipeline — you can't attack what you don't know exists. Subdomain enumeration consistently reveals staging environments, internal admin panels, API gateways, and forgotten WordPress installs that are softer targets than the production site.
skill_view(name='wp-mass-recon') — enumerate subdomains for each WordPress target.curl, httpx, dig, jq, dnsx, and subfinder.DOMAIN="example.com"
# Passive: crt.sh
curl --max-time 30 --connect-timeout 10 -sk "https://crt.sh/?q=%25.$DOMAIN&output=json" | jq -r '.[].name_value' | sed 's/\*\.//g' | sort -u > crtsh.txt
# Passive: subfinder
subfinder -d "$DOMAIN" -silent > subfinder.txt
# Merge and deduplicate
cat crtsh.txt subfinder.txt | sort -u > all_subs.txt
# Probe live hosts
httpx -silent -l all_subs.txt -threads 50 -status-code -tech-detect -title -o alive.txt
| Source | Method | Coverage | Speed |
|---|---|---|---|
| crt.sh | Certificate transparency | Excellent (most certs) | Fast (1-5s) |
| subfinder | Passive APIs (VirusTotal, Shodan, DNSdumpster, etc.) | Very good | Fast (30-60s) |
| dnsx | Bulk DNS A/AAAA/CNAME resolution (100x faster than dig) | Good (uncovers non-HTTP) |
| Fast (10-30s) |
| httpx probe | Live HTTP/HTTPS check | Best for web attack surface | Fast (30-60s) |
| Google dork | site:example.com | Supplemental | Manual |
DOMAIN="$1"
OUTDIR="$OUTDIR/subdomains/$DOMAIN"
mkdir -p "$OUTDIR"
echo "[*] Passive enumeration for $DOMAIN..."
# crt.sh — certificate transparency logs
echo "[*] crt.sh query..."
curl -sk --max-time 30 --connect-timeout 10 "https://crt.sh/?q=%25.$DOMAIN&output=json" 2>/dev/null | \
jq -r '.[].name_value' 2>/dev/null | \
sed 's/\*\.//g' | \
sed 's/^www\.//' | \
sort -u > "$OUTDIR/crtsh.txt"
crt_count=$(wc -l < "$OUTDIR/crtsh.txt")
echo " crt.sh: $crt_count entries"
# Also query with %25. (wildcard)
curl -sk --max-time 30 --connect-timeout 10 "https://crt.sh/?q=%25.%25.$DOMAIN&output=json" 2>/dev/null | \
jq -r '.[].name_value' 2>/dev/null | \
sed 's/\*\.//g' | \
sort -u > "$OUTDIR/crtsh_wildcard.txt"
# subfinder — passive API aggregation
echo "[*] subfinder..."
subfinder -d "$DOMAIN" -silent -timeout 30 2>/dev/null | sort -u > "$OUTDIR/subfinder.txt"
subf_count=$(wc -l < "$OUTDIR/subfinder.txt")
echo " subfinder: $subf_count entries"
# Merge all passive sources
cat "$OUTDIR"/crtsh.txt "$OUTDIR"/crtsh_wildcard.txt "$OUTDIR"/subfinder.txt 2>/dev/null | \
sed 's/^www\.//' | \
grep -E '^[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$' | \
sort -u > "$OUTDIR/all_passive.txt"
total=$(wc -l < "$OUTDIR/all_passive.txt")
echo ""
echo "[+] Total unique subdomains (passive): $total"
DOMAIN="$1"
OUTDIR="$OUTDIR/subdomains/$DOMAIN"
echo "[*] Resolving subdomains..."
# Batch resolve with dnsx (100x faster than dig loop)
dnsx -silent -l "$OUTDIR/all_passive.txt" -a -resp-only -o "$OUTDIR/resolved_raw.txt" 2>/dev/null
# Format output: subdomain => IP
while read -r line; do
sub=$(echo "$line" | cut -d' ' -f1)
ip=$(echo "$line" | cut -d' ' -f2)
echo "$sub => $ip"
done < "$OUTDIR/resolved_raw.txt" > "$OUTDIR/resolved.txt"
resolved=$(wc -l < "$OUTDIR/resolved.txt")
echo "[+] $resolved subdomains resolved to IPs"
# Count unique IPs
unique_ips=$(awk '{print $3}' "$OUTDIR/resolved.txt" | sort -u | wc -l)
echo "[+] $unique_ips unique IPs"
# Identify shared hosting (many subdomains → same IP)
echo ""
echo "[*] Shared hosting clusters:"
awk '{print $3}' "$OUTDIR/resolved.txt" | sort | uniq -c | sort -rn | head -10 | while read -r count ip; do
[[ "$count" -gt 1 ]] && echo " $ip: $count subdomains"
done
DOMAIN="$1"
OUTDIR="$OUTDIR/subdomains/$DOMAIN"
echo "[*] Probing live hosts..."
# httpx with tech detection
httpx -silent -l "$OUTDIR/all_passive.txt" -threads 50 \
-status-code -tech-detect -title -location \
-o "$OUTDIR/alive.txt" 2>/dev/null
alive=$(wc -l < "$OUTDIR/alive.txt")
echo "[+] $alive live hosts"
# Categorize by status code
echo ""
echo "[*] By HTTP status:"
echo " 200: $(grep -c '\[200\]' "$OUTDIR/alive.txt")"
echo " 301/302: $(grep -cE '\[301\]|\[302\]' "$OUTDIR/alive.txt")"
echo " 403: $(grep -c '\[403\]' "$OUTDIR/alive.txt")"
echo " 404: $(grep -c '\[404\]' "$OUTDIR/alive.txt")"
# Categorize by technology
echo ""
echo "[*] By technology:"
grep -Eo '\[[a-z-]+\]' "$OUTDIR/alive.txt" | tr -d '[]' | sort | uniq -c | sort -rn | head -15
# WordPress subdomains
echo ""
echo "[*] WordPress subdomains:"
grep -i 'wordpress' "$OUTDIR/alive.txt" | awk '{print $1}' | head -10
# Non-HTTP services (from DNS resolution)
echo ""
echo "[*] Interesting non-standard ports from DNS (MX, NS, etc.):"
dig +short "$DOMAIN" MX 2>/dev/null | head -5
dig +short "$DOMAIN" NS 2>/dev/null | head -5
dig +short "$DOMAIN" TXT 2>/dev/null | grep -i 'spf\|v=spf' | head -3
DOMAIN="$1"
OUTDIR="$OUTDIR/subdomains/$DOMAIN"
echo "[*] Categorizing subdomains..."
# Staging/Dev
echo ""
echo "=== STAGING / DEV ==="
grep -iE 'staging|stage|dev\.|development|test|uat|beta|sandbox|preview|qa' "$OUTDIR/all_passive.txt"
# Admin/Internal
echo ""
echo "=== ADMIN / INTERNAL ==="
grep -iE 'admin|portal|internal|dashboard|manage|cp\.|control|panel|cpanel|webmail|mail\.' "$OUTDIR/all_passive.txt"
# API
echo ""
echo "=== API ==="
grep -iE 'api|rest|graphql|ws\.|websocket' "$OUTDIR/all_passive.txt"
# Infrastructure
echo ""
echo "=== CDN / STATIC ==="
grep -iE 'cdn|static|assets|media|img|images|files|download|origin|proxy' "$OUTDIR/all_passive.txt"
# Email
echo ""
echo "=== EMAIL ==="
grep -iE 'mail\.|smtp|imap|pop|email|webmail|autodiscover' "$OUTDIR/all_passive.txt"
# Cloud
echo ""
echo "=== CLOUD ==="
grep -iE 'aws|azure|gcp|cloud|s3|bucket|firebase' "$OUTDIR/all_passive.txt"
# Legacy
echo ""
echo "=== LEGACY / OLD ==="
grep -iE 'old|old\.|v1|v2|legacy|archive|backup|bak' "$OUTDIR/all_passive.txt"
DOMAIN="$1"
OUTDIR="$OUTDIR/subdomains/$DOMAIN"
echo "[*] Checking for subdomain takeover opportunities..."
# Check for dangling CNAMEs (subdomains pointing to non-existent services)
# For bulk CNAME check: dnsx -silent -l all_passive.txt -cname -resp-only
while read -r sub; do
cname=$(dig +short "$sub" CNAME 2>/dev/null)
if [[ -n "$cname" ]]; then
# Check if the CNAME target resolves
cname_ip=$(dig +short "$cname" A 2>/dev/null)
if [[ -z "$cname_ip" ]]; then
echo "[TAKEOVER?] $sub => $cname (NOT RESOLVING)"
# Identify provider from CNAME
if echo "$cname" | grep -qi 'amazonaws.com'; then
echo " Provider: AWS (S3/CloudFront) — check if bucket/domain is claimable"
elif echo "$cname" | grep -qi 'azure'; then
echo " Provider: Azure — check if resource is claimable"
elif echo "$cname" | grep -qi 'github.io'; then
echo " Provider: GitHub Pages — check if repo name is available"
elif echo "$cname" | grep -qi 'herokuapp.com'; then
echo " Provider: Heroku — check if app name is available"
elif echo "$cname" | grep -qi 'vercel-dns.com'; then
echo " Provider: Vercel — check if project is claimable"
elif echo "$cname" | grep -qi 'zendesk.com'; then
echo " Provider: Zendesk — check if help desk is claimable"
fi
fi
fi
sleep 0.5
done < "$OUTDIR/all_passive.txt"
~/.config/subfinder/provider-config.yaml. Without them, results are limited.*.example.com resolves to the same IP, all subdomains will appear "live" in httpx. Check for wildcard by resolving a random string: dig RANDOMSTRING.example.com.Generate smart mutations from already-discovered subdomains to find hidden services:
# gotator — generates permutations
gotator -sub all_subs.txt -perm permutations.txt -depth 1 -numbers 3 -md | sort -u > subs_permuted.txt
# Resolve permutations
puredns resolve subs_permuted.txt -r resolvers.txt -o subs_permuted_alive.txt
# Common permutation patterns for the wordlist
# %s-dev, dev-%s, %s-staging, staging-%s, %s-prod, %s-internal
# %s-admin, admin-%s, %s-api, api-%s, %s-test, test-%s
# %s-stg, stg-%s, %s-uat, uat-%s, %s-www, www-%s
A company that owns target.com often neglects target.io, target.net, target.xyz:
# tldbrute — discovers registered TLD variants
tldbrute -d target.com
# Manual IANA TLD list approach
wget -q https://data.iana.org/TLD/tlds-alpha-by-domain.txt
ROOT=$(echo "target.com" | cut -d. -f1)
cat tlds-alpha-by-domain.txt | tr '[:upper:]' '[:lower:]' \
| while read tld; do echo "$ROOT.$tld"; sleep 0.2; done \
| httpx -silent -mc 200 > tlds_alive.txt
# Expand existing subdomains across TLDs
cat all_subs.txt | while read sub; do
cat tlds-alpha-by-domain.txt | tr '[:upper:]' '[:lower:]' \
| sed "s/^/$sub./"
done | dnsx -silent > subs_tld_expanded.txt
Catch new subdomains the moment they're issued:
# gungnir — real-time certificate transparency monitoring
gungnir -d target.com
# certwatcher — alternative CT log monitor
certwatcher -d target.com --webhook https://hooks.slack.com/xxx