Botnet Statistics [2021-05-17]

(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: 2021-05-17 00:00-23:59 UTC
total number of suspected botnet IPs: 33473
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 30966
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	2185
2	ALISOFT	889
3	TENCENT-CN	730
4	DIGITALOCEAN-192-241-128-0	700
5	VNPT-VN	695
6	NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK	674
7	VIETTEL-VN	575
8	HINET-NET	395
9	Baidu	339
10	CHINANET-SD	328

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	8531
2	United States	4643
3	India	1927
4	Russian Federation	1848
5	Viet Nam	1814
6	Brazil	1460
7	Indonesia	914
8	Thailand	782
9	European Union	698
10	Mexico	568

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

Rank	TCP port number	# of connection attempts received
1	445	186274
2	266	94532
3	866	75786
4	1002	62787
5	434	59242
6	22	47291
7	1100	44503
8	440	39436
9	5900	32743
10	1051	30959

20210518 Botnet Detection Live Streaming 1500+ zombies detected)