detection period: 2021-01-26 00:00-23:59 UTC
total number of suspected botnet IPs: 43850
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 40651
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 | 1859 |
| 2 | VNPT-VN | 1067 |
| 3 | HINET-NET | 884 |
| 4 | VIETTEL-VN | 841 |
| 5 | KORNET | 839 |
| 6 | TENCENT-CN | 789 |
| 7 | DIGITALOCEAN-192-241-128-0 | 673 |
| 8 | NETVIGATOR | 618 |
| 9 | VE-CSVE-LACNIC | 597 |
| 10 | ALISOFT | 567 |
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 | 9133 |
| 2 | United States | 4860 |
| 3 | Russian Federation | 2777 |
| 4 | Viet Nam | 2633 |
| 5 | Brazil | 2097 |
| 6 | India | 1711 |
| 7 | Indonesia | 1337 |
| 8 | Hong Kong | 1308 |
| 9 | Taiwan | 1284 |
| 10 | South Korea | 1229 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 445 | 276579 |
| 2 | 22 | 101158 |
| 3 | 2020 | 65845 |
| 4 | 1433 | 54865 |
| 5 | 2422 | 50574 |
| 6 | 2822 | 50074 |
| 7 | 2622 | 41833 |
| 8 | 2722 | 40823 |
| 9 | 2522 | 39555 |
| 10 | 2922 | 39040 |
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