```
from scapy.all import *

r = rdpcap("data.pcap")

flagL = []

for i in range(0, len(r)):
if ICMP in r[i]:
print 'OK'
if not "ICMP 10.136.255.127" in r[i][ICMP].summary():
continue
print r[i]
d = str(r[i]).encode('hex')
if d not in flagL:
flagL.append(d[68:70])
f = open('flag.gif', 'w')
f.write(''.join(flagL).decode('hex'))
f.close()
```

You get a flag.gif showing `flag{we_ride_at_midnight}`