Botnet Statistics [2021-04-20]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2021. To get an idea of what IP is scanning the Internet currently, please watch: Daily Botnet Detection Live Streaming.)
detection period: 2021-04-20 00:00-23:59 UTC
total number of suspected botnet IPs: 31477
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 28968
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	2210
2	TENCENT-CN	846
3	ALISOFT	817
4	NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK	710
5	DIGITALOCEAN-192-241-128-0	667
6	VNPT-VN	557
7	VIETTEL-VN	454
8	HINET-NET	440
9	Baidu	367
10	BSNLNET	299

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	8459
2	United States	4533
3	India	1882
4	Russian Federation	1620
5	Viet Nam	1557
6	Brazil	1377
7	Indonesia	995
8	European Union	731
9	Thailand	681
10	Taiwan	555

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

Rank	TCP port number	# of connection attempts received
1	445	407812
2	623	192166
3	625	189292
4	621	186832
5	806	186280
6	305	180855
7	506	180840
8	508	179674
9	505	178718
10	302	177347

20210421 Botnet Detection Live Streaming (2000+ zombies detected)