bugtraq - DNS query spam

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Date: Sun, 27 Nov 2005 23:30:21 +0100 (CET)
From: "Piotr Kamisiski" <rotunda@....krakow.pl>
To: bugtraq@...urityfocus.com
Subject: DNS query spam


Hi all,

Recently my DNS servers get jammed with bogus queries. The attacks come in 
series, taking a few minutes each, sometimes from different IPs at the 
same time, at least twice a day.

<snap>
23:05:40.241026 IP 204.92.73.10.40760 > xx.xx.xx.xx.53:  38545+ [1au] ANY ANY? e.mpisi.com. (40)
23:05:41.600902 IP 204.92.73.10.16561 > xx.xx.xx.xx.53:  22242+ [1au] ANY ANY? e.mpisi.com. (40)
23:05:42.091743 IP 204.92.73.10.37547 > xx.xx.xx.xx.53:  64644+ [1au] ANY ANY? e.mpisi.com. (40)
23:05:43.433539 IP 204.92.73.10.32370 > xx.xx.xx.xx.53:  31772+ [1au] ANY ANY? e.mpisi.com. (40)
23:05:43.854481 IP 204.92.73.10.12913 > xx.xx.xx.xx.53:  33470+ [1au] ANY ANY? e.mpisi.com. (40)
23:05:44.378640 IP 204.92.73.10.62484 > xx.xx.xx.xx.53:  8726+ [1au] ANY ANY? e.mpisi.com. (40)
23:05:45.368970 IP 204.92.73.10.57384 > xx.xx.xx.xx.53:  1073+ [1au] ANY ANY? e.mpisi.com. (40)
23:05:45.379251 IP 204.92.73.10.36997 > xx.xx.xx.xx.53:  22257+ [1au] ANY ANY? e.mpisi.com. (40)
<snap>

Has anyone noticed a similar activity?


Best regards,
Piotr Kamisiński