Sat Mandri wrote:
Hi Rick & Peter
We at Telecom NZ/Xtra are quite keen to learn from you guys how the following Statistical Data on “Botnet” was gathered and what’s the initiative driving it.
We look forward to hearing from you guys on this matter.
Kind Regards
Sat Mandri
Hi Sat, I built IASON to check and protect computer centres against attackers. The first thing IASON did was analyzing logs on routers, switches and everything. Next step might be tuning firewalls and switches, if need be, isolating devices from the net. http://iason.site.voila.fr/ http://www.kokoom.com/iason/ I still have a little trouble with https://sourceforge.net/projects/iason/ Taking parts of IASON you can adapt it to count anything, like: Whenever a firewall, an xinetd or or somebody else, sees activity on a port that is known to be notorious for a bot then count and remember that ip-address. That is a crude one but it gives you an overview. With tools like IASON, you could analyze your findings for repeating patterns. Now you can identify the bots even after they change ip-addresses. Why did I build IASON in the first place? Working for companies like GLC, Global Center and Exodus I got tired of watching people in the NOC doing the same thing again and again for hours. Their expertise was not knowledge but pure typing speed. IASON can type much faster and he even has time to read the logs. With the core of IASON programmed in prolog it might even get a clue :) Cheers Peter and Karin
---------- Forwarded message ----------
Date: Fri, 26 May 2006 10:21:10 -0700
From: Rick Wesson <wessorh@ar.com>
To: peter@peter-dambier.de
Cc: nanog@merit.edu
Subject: Re: Are botnets relevant to NANOG?
Some people need whatever bandwidth they can get for ranting.
Of course routing reports, virus reports and botnet bgp statistics
take away a lot of valuable bandwidth that could otherwise be used
for nagging. On the other hand without Gadi's howling for the
wolves those wolves might be lost species and without the wolves
all the nagging and ranting would make less fun.
lets see, should we be concerned? here are a few interesting tables, the
cnt column is new IP addresses we have seen in the last 5 days. The
first table is Tier-2 ASNs as classified by Fontas's ASN Taxonomy paper
[1] The second table is Universities. The ASN concerned are just in the
announced by orgs in USA as to imply that they should be on NANOG.
Let me say it again the counts are NEW observations in the last 5 days.
also note I'm not Gati, and I've got much more data on everyones networks.
-rick
New compromised unique IP addresses (last 5 days) Tier-2 ASN
+-------+------------------------------------+-------+
| asnum | asname | cnt |
+-------+------------------------------------+-------+
| 19262 | Verizon Internet Services | 35790 |
| 20115 | Charter Communications | 4453 |
| 8584 | Barak AS | 3930 |
| 5668 | CenturyTel Internet Holdings, Inc. | 2633 |
| 12271 | Road Runner | 2485 |
| 22291 | Charter Communications | 2039 |
| 8113 | VRIS Verizon Internet Services | 1664 |
| 6197 | BellSouth Network Solutions, Inc | 1634 |
| 6198 | BellSouth Network Solutions, Inc | 1531 |
| *9325 | XTRA-AS Telecom XTRA, Auckland | 1415* |
| 11351 | Road Runner | 1415 |
| 6140 | ImpSat | 1051 |
| 7021 | Verizon Internet Services | 961 |
| 6350 | Verizon Internet Services | 945 |
| 19444 | CHARTER COMMUNICATIONS | 845 |
+-------+------------------------------------+-------+
Universities, new unique ip last 5 days
+-------+--------------------------------+-----+
| asnum | left(asname,30) | cnt |
+-------+--------------------------------+-----+
| 14 | Columbia University | 93 |
| 3 | MIT-2 Massachusetts Institute | 45 |
| 73 | University of Washington | 25 |
| 7925 | West Virginia Network for Educ | 24 |
| 4385 | RIT-3 Rochester Institute of T | 20 |
| 23369 | SCOE-5 Sonoma County Office of | 19 |
| 5078 | Oklahoma Network for Education | 18 |
| 3388 | UNM University of New Mexico | 18 |
| 55 | University of Pennsylvania | 13 |
| 159 | The Ohio State University | 12 |
| 104 | University of Colorado at Boul | 12 |
| 4265 | CERFN California Education and | 11 |
| 693 | University of Notre Dame | 10 |
| 2900 | Arizona Tri University Network | 9 |
| 2637 | Georgia Institute of Technolog | 9 |
+-------+--------------------------------+-----+
[1] http://www.ece.gatech.edu/research/labs/MANIACS/as_taxonomy/
-- Peter and Karin Dambier Cesidian Root - Radice Cesidiana Graeffstrasse 14 D-64646 Heppenheim +49(6252)671-788 (Telekom) +49(179)108-3978 (O2 Genion) +49(6252)750-308 (VoIP: sipgate.de) mail: peter@peter-dambier.de mail: peter@echnaton.serveftp.com http://iason.site.voila.fr/ https://sourceforge.net/projects/iason/