Botnet Statistics [2021-05-22]

(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: 2021-05-22 00:00-23:59 UTC
total number of suspected botnet IPs: 29556
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 27303
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	2033
2	ALISOFT	1077
3	DIGITALOCEAN-192-241-128-0	707
4	TENCENT-CN	688
5	NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK	604
6	VNPT-VN	457
7	VIETTEL-VN	421
8	HINET-NET	398
9	Baidu	362
10	CHINANET-SD	297

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	8128
2	United States	4286
3	India	1570
4	Russian Federation	1553
5	Brazil	1318
6	Viet Nam	1249
7	Indonesia	816
8	European Union	628
9	Taiwan	543
10	Mexico	502

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

Rank	TCP port number	# of connection attempts received
1	9444	143485
2	445	103668
3	2022	93216
4	9822	63183
5	5900	62247
6	2622	59861
7	10310	54761
8	4066	46552
9	7896	44351
10	10405	43734

20210523 Botnet Detection Live Streaming 1700+ zombies detected)