# Determine if new extensions are added and send email

$yesterday = Get-Content -Path C:\PowerShellScripts\FSRM-Ransomware\download\yesterday-ransomeware.txt
$newExtensions = Compare-Object -ReferenceObject $yesterday -DifferenceObject $monitoredExtensions -PassThru
Set-Content -Path C:\PowerShellScripts\FSRM-Ransomware\download\yesterday-ransomeware.txt -Value $monitoredExtensions -Encoding UTF8

if ($newExtensions.Count -gt 0) {

  
  # Send email of updates
      $sendEmail = 1
  
    If ($sendEmail = 1) {
   
        $date       = get-date
        $compName   = get-childitem -path env:computername
        $From       = "email@domain.ca"
        $To         = "email@domain.ca"
        #$To         = "secondaryemail@domain.ca"
        $CC	        = "<secondaryemail@domain.ca>","<secondaryemail@domain.ca>","<secondaryemail@domain.ca>"
        $SMTPServer = "smtp.server.ca"
        $SMTPPort   = "587"
        $body       = @()
        $Subject    = "Fileserver "+$compName.Value+" - Extensions added to CryptoBlocker File Screening list: "+$newExtensions.Count
        $body       += "<meta http-equiv=`"Content-Type`" content=`"text/html; charset=utf-8`">"
        $body       += "New file extensions added to our CryptoBlocker File Screen Policy on "+$date
        $body       += "<BR><BR>"
        foreach ($extension in $newExtensions) {
            $body       += $extension+"<BR>"
         }
        $body       += "<BR><BR><BR><BR>List of extensions from <A href=`"https://fsrm.experiant.ca/`">https://fsrm.experiant.ca/</a>"
 
        Send-MailMessage -From $From -to $To -Cc $CC -Subject $Subject -BodyAsHTML "$Body" -SmtpServer $SMTPServer -Encoding ([System.Text.Encoding]::UTF8)
    }
}