Pymeterpreter fix processes_via_proc for Python v3

Author: zeroSteiner

data/meterpreter/ext_server_stdapi.py

@@ -753,14 +753,14 @@ def stdapi_sys_process_get_processes_via_proc(request, response):
 def stdapi_sys_process_get_processes_via_ps(request, response):
 	ps_args = ['ps', 'ax', '-w', '-o', 'pid,ppid,user,command']
 	proc_h = subprocess.Popen(ps_args, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-	ps_output = proc_h.stdout.read()
+	ps_output = str(proc_h.stdout.read())
 	ps_output = ps_output.split('\n')
 	ps_output.pop(0)
 	for process in ps_output:
 		process = process.split()
 		if len(process) < 4:
 			break
-		pgroup = ''
+		pgroup  = bytes()
 		pgroup += tlv_pack(TLV_TYPE_PID, int(process[0]))
 		pgroup += tlv_pack(TLV_TYPE_PARENT_PID, int(process[1]))
 		pgroup += tlv_pack(TLV_TYPE_USER_NAME, process[2])

modules/payloads/stages/python/meterpreter.rb

@@ -8,7 +8,6 @@
 require 'msf/base/sessions/meterpreter_python'
 require 'msf/base/sessions/meterpreter_options'
 
-
 module Metasploit3
   include Msf::Sessions::MeterpreterOptions