Extracting credentials from pcap

From: David (lists@edeca.net)
Date: Sun Sep 16 2007 - 08:00:22 EDT


I have a large number of pcaps from sensors around a network. I'd like
to be able to extract details of authentications (e.g. HTTP, POP, IMAP)
and credentials from these, with dates and times so I can draw up a
report for a customer. Unfortunately they seem to have neglected to
implement decent logging and now they are stuck.

dsniff is fantastic at pulling out various credentials but it doesn't
get the dates correct from pcap. When digging about the source code it
seems that dsniff just prints the current time/date when it finds a new
record. It doesn't even seem that libnids passes the pcap timestamp.

So I'm looking for other ideas to extract credentials along with the
date and time of their occurrence. This way I can hopefully have a
decent log of what happened when and find out "whodunnit".

Any ideas?

David

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