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Wireless Sniffing Pcap Analysis Help


bobtheman
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Using either just wireshark on my unencrypted AP or playing around with mk4 (all on my own machines and data), I can capture packets using wireshark very easily. Im familiar with using wiresharks filtering features to kick out all of the probe requests and beacon frames. However im having a hard time finding any interesting data with all of the packets. Can anyone suggest any guides or is there a tool that will extract data from a pcap ?

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If you are looking into reconstructing the data, network miner will allow you to do that.

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Depends on what you are looking for, but Network miner is good for some file types, while others require more searching, like MP3's with no proper headers, but have partial ID3 tags, you can sometimes follow a stream of data in raw packet mode, make it from sender to you, filtering all replies, then save, and edit it in binary mode to remove http headers and give it the proper extension for file type to open them, like pictures, audio, executables, etc.

@int0x80 - Would you be able to do file carving the same way you did on deleted files, with pcap files? I imagine if you wrote a tool to filter packet streams by the associated sessions, you could then reconstruct its files, while having something look for know file types, you would just first have to separate all streams/syn/ack/rst's in ordered frames per conversation and then filter for only received data vs replies to sender.

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@int0x80 - Would you be able to do file carving the same way you did on deleted files, with pcap files? I imagine if you wrote a tool to filter packet streams by the associated sessions, you could then reconstruct its files, while having something look for know file types, you would just first have to separate all streams/syn/ack/rst's in ordered frames per conversation and then filter for only received data vs replies to sender.

I like where this is going....

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@int0x80 - Would you be able to do file carving the same way you did on deleted files, with pcap files? I imagine if you wrote a tool to filter packet streams by the associated sessions, you could then reconstruct its files, while having something look for know file types, you would just first have to separate all streams/syn/ack/rst's in ordered frames per conversation and then filter for only received data vs replies to sender.

Yes, to do this I use tcpxtract. In fact, I showed how to extend tcpxtract to carve Windows executable files from a pcap in Hak5 S05E13 :]

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