Botnet Statistics [2021-05-18]

(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: 2021-05-18 00:00-23:59 UTC
total number of suspected botnet IPs: 33120
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 30448
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	2154
2	ALISOFT	860
3	TENCENT-CN	721
4	DIGITALOCEAN-192-241-128-0	700
5	NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK	681
6	VNPT-VN	628
7	VIETTEL-VN	505
8	HINET-NET	421
9	Baidu	366
10	CHINANET-SD	337

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	8603
2	United States	4716
3	Russian Federation	1837
4	India	1805
5	Viet Nam	1660
6	Brazil	1497
7	Indonesia	916
8	Thailand	747
9	European Union	703
10	Mexico	580

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

Rank	TCP port number	# of connection attempts received
1	445	182001
2	1200	120617
3	151	96686
4	156	81092
5	1451	58735
6	22	40060
7	334	39474
8	466	36051
9	5900	30495
10	1433	29305

20210519 Botnet Detection Live Streaming 1500+ zombies detected)