Windows Atomic Tests to TTP #9 (#137)

Summary:
Pull Request resolved: #137

Converting atomics to ttps in Windows Atomic Red Team Tests
This ttp was 9/10 and it performs the follow function:
Uses PowerShell and Empire's [GetSystem module](https://github.com/BC-SECURITY/Empire/blob/v3.4.0/data/module_source/privesc/Get-System.ps1).
  The script uses `SeDebugPrivilege` to obtain, duplicate and impersonate the token of a another process.
  When executed successfully, the test displays the domain and name of the account it's impersonating (local SYSTEM).

Reviewed By: godlovepenn

Differential Revision: D62652075

fbshipit-source-id: f82cf9de751c4639bd62fafbf2ee2b0bd00aecb2

ttps/privilege-escalation/windows/sedebugprivilege-token-dupl/README.md

@@ -0,0 +1,46 @@
+# "SeDebugPrivilege" Token Duplication
+
+![Meta TTP](https://img.shields.io/badge/Meta_TTP-blue)
+
+This TTP uses PowerShell and a modified version of Empire's [GetSystem module](https://github.com/BC-SECURITY/Empire/blob/v3.4.0/data/module_source/privesc/Get-System.ps1).
+The modified script uses `SeDebugPrivilege` to obtain, duplicate and impersonate the token of a another process.
+When executed successfully, the test displays the domain and name of the account it's impersonating (local SYSTEM).
+
+Derived from [Atomic Red Team T1134.001](https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1134.001/T1134.001.md#atomic-test-2---sedebugprivilege-token-duplication)
+
+## Arguments
+- **script**: a string variable specifying location of Get-System.ps1 script. Default is $PWD\src\Get-System.ps1
+
+## Pre-requisites
+- Windows operating system equipped with powershell
+
+## Examples
+You can run the TTP using the following example (after updating the arguments):
+```bash
+ttpforge run forgearmory//collection/windows/privilege-escalation/sedebugprivilege-token-dupl.yaml
+```
+```bash
+ttpforge run forgearmory//collection/windows/privilege-escalation/sedebugprivilege-token-dupl.yaml --arg Get-System-mod.ps1
+```
+
+## Steps
+1. **execute_script** : This step executes the script which obtain, duplicate and impersonate the token of a another process.
+
+    Note: cleanup --> TTP user is responsible for cleanup by removing Get-System.ps1 manually
+
+## Manual Reproduction
+```bash
+#Commands to execute the script
+IEX (Get-Content "src\Get-System.ps1" -Raw); Get-System -Technique Token
+Start-Sleep -Second 3
+IEX (Get-Content "src\Get-System.ps1" -Raw); Get-System -RevToSelf
+```
+
+## MITRE ATT&CK Mapping
+
+- **Tactics**:
+    - TA0004 Privilege Escalation
+- **Techniques**:
+    - T1134 Access Token Manipulation
+- **Subtechniques**:
+    - T1134.003 Make and Impersonate Token

ttps/privilege-escalation/windows/sedebugprivilege-token-dupl/sedebugprivilege-token-dupl.yaml

@@ -0,0 +1,38 @@
+---
+api_version: 2.0
+uuid: 0495fc77-3ef2-4aff-ae1b-c50fcac5fe89
+name: '`SeDebugPrivilege` token duplication'
+description: |
+  Uses PowerShell and Empire's [GetSystem module](https://github.com/BC-SECURITY/Empire/blob/v3.4.0/data/module_source/privesc/Get-System.ps1).
+  The script uses `SeDebugPrivilege` to obtain, duplicate and impersonate the token of a another process.
+  When executed successfully, the test displays the domain and name of the account it's impersonating (local SYSTEM).
+  Derived from https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1134.001/T1134.001.md#atomic-test-2---sedebugprivilege-token-duplication
+requirements:
+  platforms:
+    - os: windows
+mitre:
+  tactics:
+    - TA0004 Privilege Escalation
+  techniques:
+    - T1134 Access Token Manipulation
+  subtechniques:
+    - T1134.003 Make and Impersonate Token
+args:
+  - name: script
+    description: location of script
+    type: string
+    default: $PWD\src\Get-System.ps1
+steps:
+  - name: execute_script
+    executor: powershell
+    description: Executing script Get-System.ps1
+    inline: |
+      if (-Not(Test-Path "{{.Args.script}}")){
+        Write-Host "The script was not provided at {{.Args.script}} or EDR has quarantined/deleted it."
+        exit 1
+      }
+      else {
+        IEX (Get-Content "{{.Args.script}}" -Raw); Get-System -Technique Token
+        Start-Sleep -Second 3
+        IEX (Get-Content "{{.Args.script}}" -Raw); Get-System -RevToSelf
+      }