Botnet Statistics [2021-05-21]

(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: 2021-05-21 00:00-23:59 UTC
total number of suspected botnet IPs: 30173
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 27862
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	2044
2	ALISOFT	1061
3	DIGITALOCEAN-192-241-128-0	703
4	TENCENT-CN	686
5	NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK	611
6	VNPT-VN	540
7	VIETTEL-VN	478
8	HINET-NET	412
9	Baidu	360
10	CMNET	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	8334
2	United States	4268
3	India	1644
4	Russian Federation	1622
5	Viet Nam	1475
6	Brazil	1389
7	Indonesia	898
8	Thailand	666
9	European Union	632
10	Taiwan	539

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

Rank	TCP port number	# of connection attempts received
1	445	124012
2	1041	103831
3	9822	71368
4	1700	59390
5	5900	52145
6	22	43201
7	3389	29827
8	6000	28624
9	922	28556
10	1433	28287

20210522 Botnet Detection Live Streaming 1300+ zombies detected)