The data capture itself can be done via WinPcap and Microsoft Network Monitor. Malware will often use DNS traffic to communicate with its operators, for instance, so taking a closer look at your own system might help to uncover an infection (look for odd or unusual domains, say, or a lot of failed lookups).Īnd more generally, DNSQuerySniffer helps to reveal which of your applications is trying to go online, and maybe what they're trying to do. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.DNSQuerySniffer is a tiny (130KB, including a Help file) network sniffer which detects and displays DNS queries as they're sent on your system. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * DATA, OR PROFITS OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES LOSS OF USE, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * in the documentation and/or other materials provided with the * copyright notice, this list of conditions and the following disclaimer * * Redistributions in binary form must reproduce the above * notice, this list of conditions and the following disclaimer. * * Redistributions of source code must retain the above copyright * modification, are permitted provided that the following conditions are * Redistribution and use in source and binary forms, with or without This small example sniffs DNS queries and prints the domain names
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