Scapy solution for Black Hat MPTCP audience challenge http://labs.neohapsis.com/2014/08/06/blackhat-usa-multipath-tcp-tool-release-audience-challenge/

reassemble_mptcp_challenge.py

# Uses Nicolas Maitre's MPTCP-capable scapy impl, so that should be
# on the python path, or run this from a directory containing that "scapy" dir
from scapy.all import *

packets = rdpcap("pcaps/neohapsis_mptcp_challenge.pcap")
payload_packets = [p for p in packets if TCP in p
                    and p[IP].src in ("192.168.1.26", "192.168.1.33")
                    and TCPOption_MP in p
                    and p[TCPOption_MP].mptcp.subtype == 2
                    and Raw in p]

f = open("out.jpg", "w")

for p in sorted(payload_packets, key=lambda p: p[TCPOption_MP].mptcp.dsn):
    f.write(p.load)
f.close()