Netsh contribution from Freddie Bar-Smith - Thank you

yml/OSBinaries/Netsh.yml

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+---
+Name: Netsh.exe
+Description: Netsh is a Windows tool used to manipulate network interface settings.
+Author: 'Freddie Barr-Smith'
+Created: '2019-12-24'
+Commands:
+  - Command: netsh.exe add helper C:\Users\User\file.dll
+    Description: Use Netsh in order to execute a .dll file and also gain persistence, every time the netsh command is called
+    Usecase: Proxy execution of .dll
+    Category: Execute
+    Privileges: User
+    MitreID: T1128
+    MitreLink: https://attack.mitre.org/techniques/T1128/
+    OperatingSystem: Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10
+Full_Path:
+  - Path: C:\WINDOWS\System32\Netsh.exe
+  - Path: C:\WINDOWS\SysWOW64\Netsh.exe
+Code_Sample: 
+  - Code:
+Detection:
+  - IOC: Netsh initiating a network connection
+Resources:
+  - Link: https://freddiebarrsmith.com/trix/trix.html
+  - Link: https://htmlpreview.github.io/?https://github.com/MatthewDemaske/blogbackup/blob/master/netshell.html
+  - Link: https://liberty-shell.com/sec/2018/07/28/netshlep/
+Acknowledgement:
+  - Person: 'Freddie Barr-Smith'
+    Handle:
+  - Person: 'Riccardo Spolaor'
+    Handle:
+  - Person: 'Mariano Graziano'
+    Handle:
+  - Person: 'Xabier Ugarte-Pedrero'
+    Handle:
+---