detection period: 2021-01-18 00:00-23:59 UTC
total number of suspected botnet IPs: 40970
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 38045
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 | 1860 |
| 2 | VNPT-VN | 1028 |
| 3 | VIETTEL-VN | 873 |
| 4 | TENCENT-CN | 797 |
| 5 | DIGITALOCEAN-192-241-128-0 | 684 |
| 6 | HINET-NET | 580 |
| 7 | VE-CSVE-LACNIC | 537 |
| 8 | NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | 527 |
| 9 | ALISOFT | 515 |
| 10 | TELKOMNET | 500 |
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 | 8930 |
| 2 | United States | 5546 |
| 3 | India | 2742 |
| 4 | Viet Nam | 2603 |
| 5 | Russian Federation | 2315 |
| 6 | Brazil | 1858 |
| 7 | Indonesia | 1384 |
| 8 | Thailand | 965 |
| 9 | France | 784 |
| 10 | Taiwan | 770 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 445 | 320276 |
| 2 | 2989 | 175853 |
| 3 | 22 | 81912 |
| 4 | 2555 | 50155 |
| 5 | 1433 | 49690 |
| 6 | 587 | 39357 |
| 7 | 600 | 36603 |
| 8 | 23 | 30136 |
| 9 | 3389 | 21979 |
| 10 | 66 | 10595 |
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