NetworkMiner ( thanx, Russ and Dentrasi.Update: 00:15 GMT (jac) A huge thanx to all who wrote in, here are some of the tools you suggested. I'm just starting to play with it, but I figured this might be a good time to ask our readers what they use? You can send us e-mail, use the contact form, or leave a comment. is normally for is your /etc/services file: mdns 5353/tcp Multicast DNS. Well, the other day I noticed a post on Darknet about Xplico that might be (at least the basis of) the magic tool I'm looking for. Wireshark marks the ncat packets as having a bad checksum, and the Scapy ones. I have also pasted the image of the wireshark dump for convenience. It would be great if someone could point me to an automated way of dumping field specific data to a text file. Edit: As grahamb mentioned the pcap2matlab function uses the same commands as tshark, so if anybody has any experience with that and would like to help me here is the data: Once again thanks for the help Edit2: Sorry forgot to add the dissector, here it is. A couple of years ago, I put together a perl script that used tcptrace and the HTTP::Response perl module to pull downloaded files out of HTTP traffic, but what about other forms of traffic? FTP? SMTP? unknown TCP or UDP? whatever? My ideal tool would be able to reassemble the packets, discard headers, etc. I looked up certain StackOverflow posts and those posts mentioned to use TShark, but I couldn't find any way of extracting the 'info' field using TShark. Unfortunately, I have not found any really good tools that allow me to full files from lots of different types of traffic. This program allow you to extract some features from pcap. exact- pcap - extract-i cap0-0.expcap -w extracted-a -f expcap. It outputs capture files that are ordered by the expcap timestamps present in the original capture. Often in the course of investigating a compromised machine or when analyzing malware in a sandnet or honeynet, I will have a complete capture of all the network activity in a pcap file and I want to pull out any files that were downloaded by the infected machine. Step2: We need to find out appropriate TCP stream or HTTP frame. when trying to merge the snort files listed above).
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