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Friday, February 4, 2011

Botnet Statistics [2011-02-03]

Today I included data gathered from greylisting to my statistics, except the number of blocked spams and recipient count of blocked spams, which greylisting does not apply.

detection period: 2011-02-03 00:00-23:59 UTC
total number of suspected botnet IPs: 1621
number of botnet IPs notified to network operators: 1169
number of blocked spams: 183725
recipient count of blocked spams: 4253926

The top 10 networks (as found in WHOIS), ordered by number of suspected botnet IPs are:

RankNetwork# of suspected botnet IPs
1HINET-NET235
2CHINANET-GD172
3BSNLNET78
4RCOM28
5002.558.157/0001-6224
6076.535.764/0326-9019
7BY-BELPAK-2009121018
8033.530.486/0001-2918
9003.420.926/0002-0518
10KORNET-KR17

The top 10 countries (as defined by the 2-character country code), ordered by number of suspected botnet IPs are:

RankCountry# of suspected botnet IPs
1China287
2Taiwan243
3India165
4Brazil143
5Russian Federation95
6Thailand40
7Colombia39
8United States38
9South Korea34
10Germany34

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