Botnet Statistics [2021-05-28]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for May 2021. To get an idea of what IP is scanning the Internet currently, please watch: Daily Botnet Detection Live Streaming.)
detection period: 2021-05-28 00:00-23:59 UTC
total number of suspected botnet IPs: 31713
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 29321
number of spam blocked: 0
recipient count of spam blocked: 0

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

Rank	Network	# of suspected botnet IPs
1	TencentCloud	2121
2	ALISOFT	1006
3	TENCENT-CN	713
4	NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK	666
5	VNPT-VN	584
6	VIETTEL-VN	489
7	HINET-NET	478
8	Baidu	394
9	CHINANET-SD	297
10	02.558.157/0001-62	297

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

Rank	Country/Region	# of suspected botnet IPs
1	China	8650
2	United States	4213
3	India	1768
4	Russian Federation	1740
5	Brazil	1537
6	Viet Nam	1519
7	Indonesia	926
8	Thailand	706
9	European Union	699
10	Taiwan	627

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	TCP port number	# of connection attempts received
1	445	115613
2	8342	60937
3	1230	59822
4	5900	53503
5	9541	48351
6	9557	47498
7	22	47165
8	3727	44635
9	1212	43752
10	8329	37246

20210529 Botnet Detection Live Streaming 1900+ zombies detected)