# Subdominios

## Check List

1. Inspeccionar los certificados
2. Datos de los DNS de los subdominios que encontramos
3. Comprobar que con http y https sale lo mismo

## Enumeración pasiva

### Phonebook

{% embed url="<https://phonebook.cz/>" %}

### Intelx

{% embed url="<https://intelx.io/>" %}

### CRFR

```
python3 ctfr.py -d example.com
```

{% embed url="<https://github.com/UnaPibaGeek/ctfr>" %}

### Sublist3r

```
python3 sublist3r.py -d example.com
```

{% embed url="<https://github.com/aboul3la/Sublist3r>" %}

### DnsDumpster

{% embed url="<https://dnsdumpster.com/>" %}

### Hackertarget

{% embed url="<https://hackertarget.com/>" %}

## Enumeración activa

### ffuf

```
ffuf -w /usr/share/wordlists/SecLists/Discovery/DNS/bitquark-subdomains-top100000.txt -H "Host: FUZZ.example.com" -u http://<IP> -fs {size}
```

| Parámetro | Descripción                                                       |
| --------- | ----------------------------------------------------------------- |
| -w        | Wordlist                                                          |
| -H        | Cabecera del mensaje                                              |
| -u        | IP del dominio principal                                          |
| -fs       | Ignorar cualquier resultado que tenga X tamaño \[Ej: -fs 200,342] |

### Wfuzz

```
wfuzz -c --hc=403 -t 20 -w /usr/share/wordlists/SecLists/Discovery/DNS/subdomains-top1million-5000.txt -H "Host: FUZZ.example.com" -u https://example.com
```

### Gobuster

```
gobuster vhost -u https://example.com -w /usr/share/wordlists/SecLists/Discovery/DNS/subdomains-top1million-5000.txt
```

#### Con filtros

```
gobuster vhost -u https://example.com -w /usr/share/wordlists/SecLists/Discovery/DNS/subdomains-top1million-5000.txt -t 20 | grep -v "403"
```

### DNSRecon

&#x20;**DNSRecon** es una herramienta de línea de comando de Linux utilizada para la enumeración y el escaneo de servidores de nombres de dominio (DNS)

```
dnsrecon -brt -d <dominio dns>
```

| Parámetro | Descripción                                                                                                                                                      |
| --------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| -b        | Realiza una búsqueda inversa del servidor de nombres de dominio. Esta opción utiliza la dirección IP del servidor para buscar dominios alojados en ese servidor. |
| -r        | Realiza una búsqueda de registros DNS de forma recursiva en el servidor de nombres de dominio.                                                                   |
| -t        | Especifica el tipo de registro DNS que se va a buscar. Si no se especifica, se buscarán todos los tipos de registro.                                             |
| -d        | Dominio DNS                                                                                                                                                      |


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