Added a Windows Script for sending payloads over PowerShell

send_payload.ps1

@@ -0,0 +1,102 @@
+<#
+.SYNOPSIS
+  Sends the contents of a file to a specified IP address and port using PowerShell.
+
+.DESCRIPTION
+  This script reads the contents of a file and sends it over a TCP connection
+  to a specified IP address and port.  It handles potential errors and
+  provides basic feedback, including connection failure detection.
+
+.PARAMETER Payload
+  The path to the file whose contents will be sent.
+
+.PARAMETER IP
+  The IP address to send the data to.
+
+.PARAMETER Port
+  The port number to connect to.
+
+.EXAMPLE
+  .\send_payload.ps1 -Payload "C:\xxx\xxx\payload.elf" -IP "192.168.x.xxx" -Port 9021
+
+.NOTES
+  - Requires PowerShell 3.0 or later.
+  - Handles potential exceptions during socket creation and data transmission.
+  - Consider error handling and security implications in production environments.
+#>
+
+param (
+  [Parameter(Mandatory = $true, HelpMessage = "The path to the payload to send.")]
+  [string]$Payload,
+
+  [Parameter(Mandatory = $true, HelpMessage = "The IP address to send the data to.")]
+  [string]$IP,
+
+  [Parameter(Mandatory = $true, HelpMessage = "The port number to connect to.")]
+  [int]$Port
+)
+
+
+# Check if the file exists before proceeding
+if (!(Test-Path -Path $Payload -PathType Leaf)) {
+  Write-Host "The specified payload file '$Payload' does not exist, Press any key to exit..." -ForegroundColor Red
+  exit
+}
+
+try {
+  # Create a TCP client object
+  $tcpClient = New-Object System.Net.Sockets.TcpClient
+
+  Write-Host "Connecting to ${IP}:$Port...."
+
+  # Attempt to connect with a timeout
+  $connectTimeoutMs = 5000 # 5 seconds timeout
+  $connectResult = $tcpClient.BeginConnect($IP, $Port, $null, $null)
+  $connected = $connectResult.AsyncWaitHandle.WaitOne($connectTimeoutMs)
+
+  if (!$connected) {
+    # Connection timed out
+    Write-Host "Failed to connect to ${IP}:$Port within $connectTimeoutMs ms. Connection timed out, Press any key to exit..." -ForegroundColor Red
+    $tcpClient.Close() # Ensure the client is closed
+    exit  # Exit the script if connection fails
+  }
+  else {
+    $tcpClient.EndConnect($connectResult) # Complete the connection
+  }
+
+  # Get the network stream
+  $stream = $tcpClient.GetStream()
+
+  # Read the file content as a byte array
+  Write-Verbose "Reading file content from $Payload..."
+  $fileContent = [System.IO.File]::ReadAllBytes($Payload)
+
+  # Send the data
+  Write-Verbose "Sending data..."
+  $stream.Write($fileContent, 0, $fileContent.Length)
+
+  # Flush the stream to ensure all data is sent
+  $stream.Flush()
+
+  Write-Host "Successfully sent file '$Payload' to ${IP}:$Port, press any key to exit"
+
+  # Shutdown and close the connection
+  $stream.Close()
+  $tcpClient.Close()
+
+}
+catch {
+  Write-Error "An error occurred: $($_.Exception.Message), press any key to exit"
+  Write-Error $_.Exception.StackTrace
+  [System.Console]::ReadKey() | Out-Null
+}
+finally {
+  # Ensure resources are cleaned up even if an error occurs
+  if ($stream) {
+    try { $stream.Dispose() } catch {} # Handle potential disposal errors
+  }
+  if ($tcpClient) {
+    try { $tcpClient.Close() } catch {} # Handle potential close errors
+  }
+  [System.Console]::ReadKey() | Out-Null
+}