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+---
+description: >-
+  Creates, removes or inspects the AllowDefaultCredentials registry entry
+  to enable or disable TSPKG / CredSSP credential delegation used for credential-dumping
+---
+
+# 🆕 TSPKG - enable cleartext passwords from LSASS with TSPKG / CredSSP
+
+{% hint style="warning" %}
+You need at least local admin privilege on the remote target, use option **--local-auth** if your user is a local account
+{% endhint %}
+
+This module inspects, enables, or disables the `AllowDefaultCredentials` policy used by TSPKG / CredSSP credential delegation. Enabling these registry entries allow cleartext passwords in LSASS.
+
+```bash
+# Check (default)
+nxc smb 10.10.10.10 -u 'Administrator' -p 'PASSWORD' -M tspkg
+
+# Enable credential delegation
+nxc smb 10.10.10.10 -u 'Administrator' -p 'PASSWORD' -M tspkg -o ACTION=enable
+
+# Disable credential delegation
+nxc smb 10.10.10.10 -u 'Administrator' -p 'PASSWORD' -M tspkg -o ACTION=disable
+
+# Example: run lsassy module to demonstrate the effect
+nxc smb 10.10.10.10 -u 'Administrator' -p 'PASSWORD' -M lsassy
+```
+
+## What the module does
+
+* check (default) - Reads `HKLM\SOFTWARE\Policies\Microsoft\Windows\CredentialsDelegation` and reports whether `AllowDefaultCredentials` is present.
+* enable - Creates the policy key if missing, sets the `AllowDefaultCredentials` `REG_DWORD` to `1`, sets `ConcatenateDefaults_AllowDefault` to `1`, and adds an `AllowDefaultCredentials` subkey with value `1 = "*"` (wildcard SPN). This config mimics how credential delegation is enabled and allow extraction tools to recover cleartext creds.
+* disable - Attempts to delete the `AllowDefaultCredentials` subkey and the `AllowDefaultCredentials` / `ConcatenateDefaults_AllowDefault` values.
+
+## How it works
+
+1. The module uses Impacket's `RemoteOperations` helper to enable the remote registry RPC and get an HKLM handle.
+2. It opens (or creates) `HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\CredentialsDelegation`.
+3. Depending on the chosen action, it will query, set, or delete the `AllowDefaultCredentials` `REG_DWORD` and the `ConcatenateDefaults_AllowDefault` `REG_DWORD` and the `AllowDefaultCredentials` subkey entries.
+
+## Example screenshot
+
+The screenshot below demonstrates the effect the module has when combined with `lsassy`:
+
+<figure><img src="../../.gitbook/assets/tspkg.png" alt=""><figcaption><p>Sequence: check (disabled) → lsassy shows only hash → enable TSPKG → DA now logged in with TSPKG enabled → lsassy shows hash + cleartext → disable TSPKG</p></figcaption></figure>
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