Powershell v2 egress

gistfile1.txt

function Invoke-EgressAssess {
<#

.Synopsis
    Egress-assess powershell client.

.Description
    This script will connect to an Egress-assess server and transfer faux Personally Identifiable Information.
    Due to processing overhead in Powershell, numbers are created in batches of 5,000. 
    Reference: http://powershell.org/wp/2013/09/16/powershell-performance-the-operator-and-when-to-avoid-it/r

.Parameter IP
    The string containing the IP or hostname of the egress assess server

.Parameter Proxy
    This switch is used when you need to exfiltrate data using the system proxy

.Parameter Iterations
    How many blocks of X numbers to generate

Script created by @rvrsh3ll @christruncer @harmj0y @sixdub
https://www.rvrsh3ll.net
https://www.christophertruncer.com/
http://blog.harmj0y.net/
http://sixdub.net/


#>
[CmdletBinding()]
Param (
    [Parameter(Mandatory=$True)]
    [string]$IP,
    [switch]$Proxy,
    [int]$Iterations=1,
    [int]$BatchMB=100
    )

begin {

    function Generate-SSN {
        #determine the number of SSN based on 11 bytes per SSN 
        $num = [math]::Round(($BatchMB*1MB)/11)
        Write-Verbose "Generating $BatchMB MB of Social Security Numbers ($num)..."
        $list = New-Object System.Collections.Generic.List[System.String]
        $percentcount=0
        $quart=[math]::Round($num/4)
         for ($i=0; $i -lt $num; $i++){
            if($i%$quart -eq 0)
            {
                $percent=$percentcount*25
                Write-Verbose "$percent Done! $i SSNs Generated"
                $percentcount+=1
            }
            $r = "$(Get-Random -minimum 100 -maximum 999)-$(Get-Random -minimum 10 -maximum 99)-$(Get-Random -minimum 1000 -maximum 9999)"
            $list.Add($r)
          }      
        return $list.ToArray()
        }


    function Use-HTTP {
        $totalupload=0
        $Numbers = Generate-SSN
        $Url = "http://" + $IP + "/post_data.php"
        $uri = New-Object -TypeName System.Uri -ArgumentList $Url
        $wc = New-Object -TypeName System.Net.WebClient
        if ($proxy) {
            $proxy = [System.Net.WebRequest]::GetSystemWebProxy()
            $proxy.Credentials = [System.Net.CredentialCache]::DefaultCredentials
            $wc.proxy = $proxy
        }
        $sizedata = [math]::Round((($Numbers.length)*11/1MB),2)
        Write-Verbose  "Uploading  data of size $sizedata MB..."
        1..$iterations | foreach-object {
            $wc.UploadString($uri, $Numbers)
            Write-Verbose "Batch $_ Complete"
            $totalupload+=$sizedata
        }
        Write-Verbose "Transaction Complete. $totalupload MB attempted to upload"
        [System.GC]::Collect()


    }


}
    process {
            Use-HTTP

    }

    end {
        [System.GC]::Collect()
        Write-Verbose "Exiting.."
    }

}