detection period: 2021-01-15 00:00-23:59 UTC
total number of suspected botnet IPs: 41650
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 38737
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 | 1950 |
| 2 | VNPT-VN | 936 |
| 3 | TENCENT-CN | 818 |
| 4 | VIETTEL-VN | 791 |
| 5 | DIGITALOCEAN-192-241-128-0 | 694 |
| 6 | CENTURYLINK-LEGACY-QWEST-INET-118 | 662 |
| 7 | HINET-NET | 614 |
| 8 | ALISOFT | 551 |
| 9 | NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | 545 |
| 10 | VE-CSVE-LACNIC | 507 |
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 | 9490 |
| 2 | United States | 6603 |
| 3 | India | 2421 |
| 4 | Russian Federation | 2369 |
| 5 | Viet Nam | 2362 |
| 6 | Brazil | 1896 |
| 7 | Indonesia | 1280 |
| 8 | Thailand | 937 |
| 9 | France | 850 |
| 10 | Taiwan | 833 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 445 | 326162 |
| 2 | 3389 | 203346 |
| 3 | 1000 | 154260 |
| 4 | 22 | 61601 |
| 5 | 23 | 55216 |
| 6 | 1433 | 48050 |
| 7 | 221 | 28017 |
| 8 | 322 | 25399 |
| 9 | 1922 | 24429 |
| 10 | 422 | 23308 |
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