[TOOL] WinDNSSpoof, A Windows Based DNS Spoofer

From: support@securiteam.com
Date: 10/06/02


From: support@securiteam.com
To: list@securiteam.com
Date: 6 Oct 2002 20:09:10 +0200

The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
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  WinDNSSpoof, A Windows Based DNS Spoofer
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DETAILS

This tool is a simple DNS ID Spoofer for Windows 9x/2K. In order to use it
you must be able to sniff traffic of the computer being attacked. If you
are in a switched network you can use ARP Cache Poisoning tools like
winarp_sk or winarp_mim (see <http://www.arp-sk.org>
http://www.arp-sk.org)

If you want to be sure that the DNS Server doesn't answer before
WinDNSSpoof configure a personal firewall to block outgoing DNS traffic
(UDP 53 destination port). After this WinDNSSpoof takes care to spoof only
those packets that are required to, and the rest to allow to go through.
For this you must specify the MAC address of the DNS server (or the
default gateway if the DNS server is in another network).

Usage : wds -h

Example : wds -n www.microsoft.com -i 216.239.39.101 -g 00-00-39-5c-45-3b

Note that WinDNSSpoof requires <http://winpcap.polito.it> WinPcap.

ADDITIONAL INFORMATION

The information has been provided by <mailto:valgasu@securiteinfo.com>
Valgasu.

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