detection period: 2021-01-13 00:00-23:59 UTC
total number of suspected botnet IPs: 43429
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 40333
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 | 2016 |
| 2 | VNPT-VN | 974 |
| 3 | CENTURYLINK-LEGACY-QWEST-INET-118 | 847 |
| 4 | TENCENT-CN | 832 |
| 5 | VIETTEL-VN | 830 |
| 6 | DIGITALOCEAN-192-241-128-0 | 681 |
| 7 | HINET-NET | 582 |
| 8 | NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | 575 |
| 9 | ALISOFT | 558 |
| 10 | VE-CSVE-LACNIC | 502 |
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 | 9650 |
| 2 | United States | 7531 |
| 3 | Viet Nam | 2567 |
| 4 | India | 2557 |
| 5 | Russian Federation | 2404 |
| 6 | Brazil | 1974 |
| 7 | Indonesia | 1332 |
| 8 | Thailand | 921 |
| 9 | France | 858 |
| 10 | Taiwan | 779 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 445 | 296186 |
| 2 | 1433 | 107204 |
| 3 | 2525 | 72477 |
| 4 | 22 | 71429 |
| 5 | 23 | 47672 |
| 6 | 400 | 37686 |
| 7 | 1222 | 22999 |
| 8 | 1000 | 17714 |
| 9 | 2053 | 17622 |
| 10 | 1001 | 17268 |
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