detection period: 2021-01-21 00:00-23:59 UTC
total number of suspected botnet IPs: 42368
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 39219
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 | 1930 |
| 2 | VNPT-VN | 1001 |
| 3 | VIETTEL-VN | 828 |
| 4 | TENCENT-CN | 822 |
| 5 | DIGITALOCEAN-192-241-128-0 | 677 |
| 6 | HINET-NET | 634 |
| 7 | NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | 588 |
| 8 | ALISOFT | 556 |
| 9 | VE-CSVE-LACNIC | 514 |
| 10 | KORNET | 509 |
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 | 9707 |
| 2 | United States | 4924 |
| 3 | India | 2777 |
| 4 | Viet Nam | 2552 |
| 5 | Russian Federation | 2440 |
| 6 | Brazil | 2009 |
| 7 | Indonesia | 1392 |
| 8 | Thailand | 938 |
| 9 | Taiwan | 907 |
| 10 | Hong Kong | 832 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 445 | 288319 |
| 2 | 3049 | 175510 |
| 3 | 3333 | 106605 |
| 4 | 22 | 85439 |
| 5 | 2707 | 60003 |
| 6 | 1433 | 53833 |
| 7 | 23 | 38212 |
| 8 | 1700 | 38034 |
| 9 | 3389 | 25735 |
| 10 | 66 | 23873 |
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