detection period: 2021-02-16 00:00-23:59 UTC
total number of suspected botnet IPs: 41869
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 38548
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 | 1995 |
| 2 | HINET-NET | 868 |
| 3 | KORNET | 786 |
| 4 | TENCENT-CN | 762 |
| 5 | NETVIGATOR | 740 |
| 6 | DIGITALOCEAN-192-241-128-0 | 648 |
| 7 | NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | 608 |
| 8 | ALISOFT | 561 |
| 9 | VE-CSVE-LACNIC | 504 |
| 10 | TELKOMNET | 442 |
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 | 8826 |
| 2 | United States | 4771 |
| 3 | India | 2703 |
| 4 | Russian Federation | 2388 |
| 5 | Brazil | 1898 |
| 6 | Hong Kong | 1567 |
| 7 | Taiwan | 1273 |
| 8 | Indonesia | 1250 |
| 9 | South Korea | 1186 |
| 10 | Viet Nam | 1095 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 445 | 293427 |
| 2 | 22 | 90212 |
| 3 | 220 | 85139 |
| 4 | 1000 | 81804 |
| 5 | 1222 | 81770 |
| 6 | 222 | 65764 |
| 7 | 1155 | 64515 |
| 8 | 1433 | 43352 |
| 9 | 23 | 41816 |
| 10 | 1234 | 37297 |
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