detection period: 2021-02-21 00:00-23:59 UTC
total number of suspected botnet IPs: 31714
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 29241
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 | 1944 |
| 2 | TENCENT-CN | 735 |
| 3 | DIGITALOCEAN-192-241-128-0 | 608 |
| 4 | NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | 570 |
| 5 | ALISOFT | 564 |
| 6 | VNPT-VN | 552 |
| 7 | HINET-NET | 502 |
| 8 | VIETTEL-VN | 417 |
| 9 | Baidu | 402 |
| 10 | VE-CSVE-LACNIC | 371 |
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 | 8611 |
| 2 | United States | 4408 |
| 3 | Russian Federation | 1639 |
| 4 | India | 1474 |
| 5 | Viet Nam | 1365 |
| 6 | Brazil | 1180 |
| 7 | Indonesia | 691 |
| 8 | France | 687 |
| 9 | Taiwan | 639 |
| 10 | European Union | 604 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 1003 | 421111 |
| 2 | 445 | 193777 |
| 3 | 65000 | 186014 |
| 4 | 2031 | 133218 |
| 5 | 1000 | 98981 |
| 6 | 22 | 63837 |
| 7 | 64200 | 46899 |
| 8 | 64100 | 46893 |
| 9 | 63300 | 46707 |
| 10 | 64300 | 46693 |
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