detection period: 2021-04-01 00:00-23:59 UTC
total number of suspected botnet IPs: 36639
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 33663
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 | 2073 |
| 2 | VNPT-VN | 867 |
| 3 | VIETTEL-VN | 797 |
| 4 | TENCENT-CN | 777 |
| 5 | ALISOFT | 691 |
| 6 | NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | 638 |
| 7 | HINET-NET | 559 |
| 8 | BSNLNET | 415 |
| 9 | TELKOMNET | 394 |
| 10 | VE-CSVE-LACNIC | 387 |
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 | 8798 |
| 2 | United States | 4118 |
| 3 | India | 2837 |
| 4 | Viet Nam | 2309 |
| 5 | Russian Federation | 2154 |
| 6 | Brazil | 1603 |
| 7 | Indonesia | 1225 |
| 8 | Thailand | 851 |
| 9 | Taiwan | 729 |
| 10 | European Union | 663 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 445 | 498278 |
| 2 | 177 | 169615 |
| 3 | 1018 | 152753 |
| 4 | 1038 | 125772 |
| 5 | 1089 | 122089 |
| 6 | 1028 | 121736 |
| 7 | 118 | 121245 |
| 8 | 1189 | 118749 |
| 9 | 1068 | 117399 |
| 10 | 1128 | 105495 |