Botnet Statistics [2021-05-31]

(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: 2021-05-31 00:00-23:59 UTC
total number of suspected botnet IPs: 31778
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 29345
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	2045
2	ALISOFT	991
3	TENCENT-CN	703
4	VNPT-VN	634
5	NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK	628
6	HINET-NET	487
7	VIETTEL-VN	453
8	Baidu	391
9	CMNET	312
10	TELKOMNET	308

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	8531
2	United States	4071
3	Russian Federation	1831
4	India	1693
5	Viet Nam	1549
6	Brazil	1430
7	Indonesia	937
8	Thailand	719
9	European Union	661
10	Taiwan	630

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

Rank	TCP port number	# of connection attempts received
1	445	147093
2	6007	102564
3	10004	89953
4	2525	58123
5	5900	54213
6	22	52357
7	4522	48880
8	10023	44329
9	3642	43777
10	6028	38187

20210601 Botnet Detection Live Streaming 1600+ zombies detected)