Botnet Statistics [2021-10-20]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for October 2021. To get an idea of what IP is scanning the Internet currently, please watch: Daily Botnet Detection Live Streaming.)
detection period: 2021-10-20 00:00-23:59 UTC
total number of suspected botnet IPs: 25522
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 23456
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	VNPT-VN	767
2	DIGITALOCEAN-192-241-128-0	738
3	VIETTEL-VN	678
4	ALISOFT	664
5	HINET-NET	574
6	TencentCloud	457
7	BSNLNET	319
8	02.558.157/0001-62	305
9	CMNET	287
10	AFRINIC-042005	284

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	3577
2	United States	3307
3	Russian Federation	2033
4	India	2033
5	Viet Nam	1977
6	Brazil	1565
7	Thailand	807
8	Taiwan	701
9	Indonesia	688
10	Mexico	573

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

Rank	TCP port number	# of connection attempts received
1	445	309006
2	8620	289545
3	4527	281448
4	4227	276481
5	4225	267305
6	3925	220907
7	3826	212319
8	6913	208034
9	4212	207294
10	4710	206910

20211021 Botnet Detection Live Streaming 100+ zombies detected)