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shark on wire 2
We found this packet capture. Recover the flag that was pilfered from the network. You can also find the file in /problems/shark-on-wire-2_0_3e92bfbdb2f6d0e25b8d019453fdbf07.
- 1.Open the ".pcap" file in wireshark.
- 2.Since the previous challenge involved following the UDP stream, that is the first step we should take to solve this. Go to
Analyze -> Follow -> UDP Streamand click through the streams.
- 3.One stream has a message labeled start and the following streams are all strings of various lengths that contain the character "a".
- 4.Looking in the info column, we can see that the requests all come from different ports from the same IP.
- 5.Filter the IP:
ip.src == 10.0.0.66
- 6.We can see that the second message originates from source port 5112. 112 is a number which should alert us, since its ASCII representation is
p, which matches the flag template.