Botnet Statistics [2012-05-21]

detection period: 2012-05-21 00:00-23:59 UTC
total number of suspected botnet IPs: 4243
number of botnet IPs notified to network operators: 3567
number of spam blocked: 161530
recipient count of spam blocked: 5495591

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

Rank	Network	# of suspected botnet IPs
1	CHINANET-GD	793
2	UNICOM-GD	598
3	MAINT-CHINANET-HA	457
4	HINET-NET	166
5	CHINANET-HA	132
6	VNPT-VNNIC-VN	72
7	CHINANET-FJ	54
8	BSNLNET	46
9	CHINANET-JS	37
10	CRTC	36

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

Rank	Country	# of suspected botnet IPs
1	China	2523
2	Taiwan	184
3	India	181
4	United States	145
5	Brazil	145
6	Viet Nam	124
7	Russian Federation	88
8	South Korea	83
9	Pakistan	40
10	Ukraine	28