Botnet Statistics [2010-07-16]

Taiwan, once the regular champion in my botnet chart, finally dropped out of the top 10 yesterday. China, possibly having the largest internet population in the world, also shows signs of improvement. While China has not left my botnet chart yet, it has managed to stay out of ICSA Labs' Top 10 countries sending spam, Sophos' Dirty dozen spam-relaying countries, and M86 Security Labs' Top 12 Spam Sources by Country for the past few months. China also falls from the all time champion, to around 20th of the last 30 and 7 days, on the spam server country chart of Project Honey Pot.

detection period: 2010-07-16 00:00-23:59 UTC
total number of suspected botnet IPs: 2937
number of botnet IPs notified to network operators: 2480
number of blocked spams: 100248
recipient count of blocked spams: 2456001

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

Rank	Network	# of suspected botnet IPs
1	BSNLNET	688
2	CHINANET-GD	405
3	RITELE	204
4	AR-TEAR7-LACNIC	94
5	TATACOMM-IN	82
6	RCOM	76
7	HATHWAY-NET	47
8	002.558.134/0001-58	43
9	000.065.376/0002-65	42
10	CAT-BB-NET	40

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	India	990
2	China	903
3	Brazil	245
4	Argentina	153
5	Russian Federation	114
6	Thailand	91
7	United States	36
8	Ukraine	32
9	Indonesia	31
10	Colombia	30