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Sunday, May 22, 2011

Botnet Statistics [2011-05-21]

detection period: 2011-05-21 00:00-23:59 UTC
total number of suspected botnet IPs: 1867
number of botnet IPs notified to network operators: 1409
number of blocked spams: 41473
recipient count of blocked spams: 1280305

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

RankNetwork# of suspected botnet IPs
1HINET-NET190
2CHINANET-GD186
3UNICOM-GD144
4CHINANET-JS44
5UNICOM-BJ37
6CTTNET34
7CRTC32
8TELKOMNET28
9CHINANET-ZJ24
10CHINANET-SH17

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
1China840
2Taiwan208
3Brazil73
4United States65
5Russian Federation59
6Indonesia57
7India53
8Viet Nam30
9South Korea30
10Argentina29

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