detection period: 2021-02-19 00:00-23:59 UTC
total number of suspected botnet IPs: 34813
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 32080
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 | 1938 |
| 2 | VNPT-VN | 791 |
| 3 | TENCENT-CN | 734 |
| 4 | DIGITALOCEAN-192-241-128-0 | 641 |
| 5 | VIETTEL-VN | 580 |
| 6 | NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | 557 |
| 7 | HINET-NET | 550 |
| 8 | VE-CSVE-LACNIC | 458 |
| 9 | ALISOFT | 455 |
| 10 | BSNLNET | 412 |
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 | 8376 |
| 2 | United States | 4208 |
| 3 | India | 2448 |
| 4 | Russian Federation | 1917 |
| 5 | Viet Nam | 1881 |
| 6 | Brazil | 1567 |
| 7 | Indonesia | 1006 |
| 8 | Thailand | 746 |
| 9 | Taiwan | 703 |
| 10 | France | 676 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 445 | 297383 |
| 2 | 22 | 77747 |
| 3 | 23 | 49372 |
| 4 | 554 | 43579 |
| 5 | 1433 | 42064 |
| 6 | 158 | 28397 |
| 7 | 1000 | 25355 |
| 8 | 220 | 22379 |
| 9 | 3389 | 18338 |
| 10 | 3344 | 16503 |
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