detection period: 2021-01-16 00:00-23:59 UTC
total number of suspected botnet IPs: 38499
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 35774
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 | 1877 |
| 2 | TENCENT-CN | 796 |
| 3 | VNPT-VN | 741 |
| 4 | VIETTEL-VN | 692 |
| 5 | DIGITALOCEAN-192-241-128-0 | 681 |
| 6 | HINET-NET | 550 |
| 7 | ALISOFT | 524 |
| 8 | NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | 513 |
| 9 | CENTURYLINK-LEGACY-QWEST-INET-118 | 499 |
| 10 | CHINANET-JS | 470 |
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 | 9239 |
| 2 | United States | 5869 |
| 3 | India | 2263 |
| 4 | Russian Federation | 2172 |
| 5 | Viet Nam | 2035 |
| 6 | Brazil | 1674 |
| 7 | Indonesia | 1032 |
| 8 | France | 804 |
| 9 | Taiwan | 792 |
| 10 | Hong Kong | 643 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 445 | 223451 |
| 2 | 23 | 100071 |
| 3 | 1433 | 96590 |
| 4 | 22 | 77715 |
| 5 | 1600 | 39695 |
| 6 | 233 | 36796 |
| 7 | 1000 | 30566 |
| 8 | 3389 | 21683 |
| 9 | 21 | 17433 |
| 10 | 66 | 16324 |
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