detection period: 2021-04-12 00:00-23:59 UTC
total number of suspected botnet IPs: 35417
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 32597
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 | 2073 |
| 2 | VNPT-VN | 970 |
| 3 | VIETTEL-VN | 831 |
| 4 | TENCENT-CN | 802 |
| 5 | DIGITALOCEAN-192-241-128-0 | 640 |
| 6 | NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | 626 |
| 7 | ALISOFT | 623 |
| 8 | HINET-NET | 594 |
| 9 | BSNLNET | 395 |
| 10 | VE-CSVE-LACNIC | 363 |
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 | 8491 |
| 2 | United States | 4278 |
| 3 | India | 2694 |
| 4 | Viet Nam | 2473 |
| 5 | Russian Federation | 1994 |
| 6 | Brazil | 1635 |
| 7 | Indonesia | 1072 |
| 8 | Taiwan | 730 |
| 9 | European Union | 644 |
| 10 | South Korea | 530 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 445 | 402956 |
| 2 | 1028 | 210807 |
| 3 | 1027 | 209955 |
| 4 | 1029 | 204374 |
| 5 | 1026 | 140150 |
| 6 | 1035 | 133302 |
| 7 | 1135 | 132121 |
| 8 | 18065 | 126717 |
| 9 | 6011 | 100845 |
| 10 | 13 | 99189 |
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