Botnet Statistics [2021-05-19]

(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: 2021-05-19 00:00-23:59 UTC
total number of suspected botnet IPs: 32930
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 30410
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	2079
2	ALISOFT	964
3	TENCENT-CN	703
4	DIGITALOCEAN-192-241-128-0	699
5	NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK	653
6	VNPT-VN	631
7	VIETTEL-VN	529
8	HINET-NET	466
9	Baidu	358
10	CMNET	327

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	8501
2	United States	4342
3	Russian Federation	1846
4	India	1830
5	Viet Nam	1648
6	Brazil	1567
7	Indonesia	1234
8	Thailand	742
9	European Union	674
10	Taiwan	607

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

Rank	TCP port number	# of connection attempts received
1	445	257077
2	1400	58120
3	393	57867
4	22	49305
5	1200	45956
6	2424	40504
7	1005	33620
8	1433	32169
9	2235	29900
10	23	29586

20210520 Botnet Detection Live Streaming 1600+ zombies detected)