Create Recon.md

Recon.md

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+# Recon
+
+
+
+### Recon Subdomain & identify JS files
+Discover subdomains, identify JavaScript files (with HTTP response status 200), and save the results in separate files
+
+```bash
+subfinder -d domain.com | httpx -mc 200 | tee subdomains.txt && cat subdomains.txt | waybackurls | httpx -mc 200 | grep .js | tee js.txt
+
+```
+
+for example you can grep JS file `js.txt`
+
+```bash
+cat js.txt | grep -r -E “aws_access_key|aws_secret_key|api key|passwd|pwd|heroku|slack|firebase|swagger|aws_secret_key|aws key|password|ftp password|jdbc|db|sql|secret jet|config|admin|pwd|json|gcp|htaccess|.env|ssh key|.git|access key|secret token|oauth_token|oauth_token_secret”
+
+```
+
+run a Nuclei command on the `js.txt` file with the exposures tag
+
+```bash
+nuclei -l js.txt -t ~/nuclei-templates/exposures/ -o js_exposures_results.txt
+
+```
+
+### ASNs
+
+```bash
+#You can try "automate" this with amass, but it's not very recommended
+amass intel -org tesla
+amass intel -asn 8911,50313,394161
+
+```
+
+### Reverse DNS
+
+```bash
+dnsrecon -r <DNS Range> -n <IP_DNS>   #DNS reverse of all of the addresses
+dnsrecon -d facebook.com -r 157.240.221.35/24 #Using facebooks dns
+dnsrecon -r 157.240.221.35/24 -n 1.1.1.1 #Using cloudflares dns
+dnsrecon -r 157.240.221.35/24 -n 8.8.8.8 #Using google dns
+
+```
+
+### Reverse Whois (loop)
+* https://viewdns.info/reversewhois/
+* https://domaineye.com/reverse-whois
+* https://www.reversewhois.io/
+* https://www.whoxy.com/
+
+
+### Trackers
+There are some pages and tools that let you search by these trackers and more
+
+* https://github.com/dhn/udon
+* https://builtwith.com/
+* https://www.sitesleuth.io/
+* https://publicwww.com/
+* http://spyonweb.com/
+
+
+### Favicon
+Did you know that we can find related domains and sub domains to our target by looking for the same favicon icon hash?
+
+Simply said, favihash will allow us to discover domains that have the same favicon icon hash as our target.
+
+* https://github.com/m4ll0k/Bug-Bounty-Toolz/blob/master/favihash.py
+
+```bash
+cat my_targets.txt | xargs -I %% bash -c 'echo "http://%%/favicon.ico"' > targets.txt
+python3 favihash.py -f https://target/favicon.ico -t targets.txt -s
+
+```
+if you know the hash of the favicon of a vulnerable version of a web tech you can search if in **shodan** and find more vulnerable places
+
+```bash
+shodan search org:"Target" http.favicon.hash:116323821 --fields ip_str,port --separator " " | awk '{print $1":"$2}'
+
+```
+you can calculate the favicon hash of a web
+
+```python
+import mmh3
+import requests
+import codecs
+
+def fav_hash(url):
+    response = requests.get(url)
+    favicon = codecs.encode(response.content,"base64")
+    fhash = mmh3.hash(favicon)
+    print(f"{url} : {fhash}")
+    return fhash
+
+```
+
+### Copyright / Uniq string
+Search inside the web pages strings that could be shared across different webs in the same organisation. The copyright string could be a good example. Then search for that string in google, in other browsers or even in shodan: `shodan search http.html:"Copyright string"`
+
+### Shodan
+
+```bash
+org:"Tesla, Inc."
+ssl:"Tesla Motors"
+
+```
+
+### Assetfinder
+* [assetfinder](https://github.com/tomnomnom/assetfinder)
+
+```bash
+# Install
+go get -u github.com/tomnomnom/assetfinder
+
+# Usage
+assetfinder [--subs-only] <domain>
+
+```
+
+## Subdomains
+### DNS
+
+Let's try to get subdomains from the DNS records. We should also try for Zone Transfer (If vulnerable, you should report it).
+```bash
+dnsrecon -a -d tesla.com
+
+```
+
+### OSINT
+* [bbot](https://github.com/blacklanternsecurity/bbot)
+```bash
+# subdomains
+bbot -t tesla.com -f subdomain-enum
+
+# subdomains (passive only)
+bbot -t tesla.com -f subdomain-enum -rf passive
+
+# subdomains + port scan + web screenshots
+bbot -t tesla.com -f subdomain-enum -m naabu gowitness -n my_scan -o .
+
+```
+* [Amass](https://github.com/OWASP/Amass)
+```bash
+amass enum [-active] [-ip] -d tesla.com
+amass enum -d tesla.com | grep tesla.com # To just list subdomains
+
+```
+* [subfinder](https://github.com/projectdiscovery/subfinder)
+```bash
+# Subfinder, use -silent to only have subdomains in the output
+./subfinder-linux-amd64 -d tesla.com [-silent]
+
+```
+* [assetfinder](https://github.com/tomnomnom/assetfinder)
+```bash
+assetfinder --subs-only <domain>
+
+```
+
+* [crt.sh](https://crt.sh/)
+```bash
+# Get Domains from crt free API
+crt(){
+ curl -s "https://crt.sh/?q=%25.$1" \
+  | grep -oE "[\.a-zA-Z0-9-]+\.$1" \
+  | sort -u
+}
+crt tesla.com
+
+```
+* [massdns](https://github.com/blechschmidt/massdns)
+```bash
+sed 's/$/.domain.com/' subdomains.txt > bf-subdomains.txt
+./massdns -r resolvers.txt -w /tmp/results.txt bf-subdomains.txt
+grep -E "tesla.com. [0-9]+ IN A .+" /tmp/results.txt
+
+```
+* [gobuster](https://github.com/OJ/gobuster)
+```bash
+gobuster dns -d mysite.com -t 50 -w subdomains.txt
+
+```
+
+* [shuffledns](https://github.com/projectdiscovery/shuffledns)
+
+shuffledns is a wrapper around massdns, written in go, that allows you to enumerate valid subdomains using active bruteforce, as well as resolve subdomains with wildcard handling and easy input-output support.
+```bash
+shuffledns -d example.com -list example-subdomains.txt -r resolvers.txt
+
+```
+
+* [puredns](https://github.com/d3mondev/puredns)
+```bash
+puredns bruteforce all.txt domain.com
+
+```
+
+### Second DNS Brute-Force Round
+* [dnsgen](https://github.com/ProjectAnte/dnsgen)
+```bash
+cat subdomains.txt | dnsgen -
+
+```
+### VHosts / Virtual Hosts
+* OSINT
+  * [HostHunter](https://github.com/SpiderLabs/HostHunter)
+
+**Brute Force**
+```bash
+ffuf -c -w /path/to/wordlist -u http://victim.com -H "Host: FUZZ.victim.com"
+
+gobuster vhost -u https://mysite.com -t 50 -w subdomains.txt
+
+wfuzz -c -w /usr/share/wordlists/SecLists/Discovery/DNS/subdomains-top1million-20000.txt --hc 400,404,403 -H "Host: FUZZ.example.com" -u http://example.com -t 100
+
+#From https://github.com/allyshka/vhostbrute
+vhostbrute.py --url="example.com" --remoteip="10.1.1.15" --base="www.example.com" --vhosts="vhosts_full.list"
+
+#https://github.com/codingo/VHostScan
+VHostScan -t example.com
+
+```
+
+### CORS Brute Force
+Sometimes you will find pages that only return the header Access-Control-Allow-Origin when a valid domain/subdomain is set in the Origin header. In these scenarios, you can abuse this behaviour to discover new subdomains.
+```bash
+ffuf -w subdomains-top1million-5000.txt -u http://10.10.10.208 -H 'Origin: http://FUZZ.crossfit.htb' -mr "Access-Control-Allow-Origin" -ignore-body
+
+```
+
+### Emails
+With the domains and subdomains inside the scope you basically have all what you need to start searching for emails. These are the APIs and tools that have worked the best for me to find emails of a company:
+
+* [hunter.io](https://hunter.io/)
+* [snov.io](https://app.snov.io/)
+* [minelead.io](https://minelead.io/)
+
+
+### Credential Leaks
+With the domains, subdomains, and emails you can start looking for credentials leaked in the past belonging to those emails:
+* [leak-lookup](https://leak-lookup.com/account/login)
+* [dehashed](https://www.dehashed.com/)
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