Botnet Statistics [2021-05-26]

(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: 2021-05-26 00:00-23:59 UTC
total number of suspected botnet IPs: 33367
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 30685
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	2143
2	ALISOFT	1007
3	TENCENT-CN	739
4	VNPT-VN	717
5	NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK	690
6	DIGITALOCEAN-192-241-128-0	590
7	VIETTEL-VN	488
8	HINET-NET	470
9	Baidu	402
10	CHINANET-AH	330

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	8961
2	United States	4350
3	Russian Federation	2004
4	India	1780
5	Viet Nam	1712
6	Brazil	1503
7	European Union	721
8	Indonesia	689
9	Taiwan	641
10	South Korea	580

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

Rank	TCP port number	# of connection attempts received
1	1221	161685
2	445	150725
3	6028	143982
4	34622	103941
5	34322	75007
6	33722	68477
7	1223	67501
8	32622	66443
9	33822	65968
10	33622	64234

20210527 Botnet Detection Live Streaming 1800+ zombies detected)