detection period: 2021-02-23 00:00-23:59 UTC
total number of suspected botnet IPs: 34059
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 31400
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 | 1894 |
| 2 | VNPT-VN | 821 |
| 3 | TENCENT-CN | 738 |
| 4 | VIETTEL-VN | 638 |
| 5 | DIGITALOCEAN-192-241-128-0 | 632 |
| 6 | NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | 546 |
| 7 | HINET-NET | 527 |
| 8 | ALISOFT | 491 |
| 9 | VE-CSVE-LACNIC | 436 |
| 10 | Baidu | 373 |
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 | 8473 |
| 2 | United States | 4011 |
| 3 | India | 2386 |
| 4 | Viet Nam | 2037 |
| 5 | Russian Federation | 1577 |
| 6 | Brazil | 1526 |
| 7 | Indonesia | 973 |
| 8 | Thailand | 748 |
| 9 | Taiwan | 680 |
| 10 | France | 649 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 445 | 275729 |
| 2 | 22 | 82611 |
| 3 | 1433 | 57815 |
| 4 | 23 | 29375 |
| 5 | 1022 | 28567 |
| 6 | 3344 | 16533 |
| 7 | 1234 | 15845 |
| 8 | 3389 | 14118 |
| 9 | 1991 | 11635 |
| 10 | 1222 | 10293 |
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