Port 37443
HoneyLabs honeypots recorded 83 probes against destination port 37443 from 42 distinct source IP addresses in the last 7 days.
First observed 2026-11-01 18:13, most recently 2026-11-08 17:51 (UTC).
What the sensors show
The sources sat in 7 networks across 9 countries. No single address sent more than 17% of them. The largest source network was AS135377 (UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED), with 41% of the probes from 5 addresses. 1 of the 25 busiest addresses is a recognised research scanner.
Most active source addresses
| Source IP | Probes | Network | Country |
|---|---|---|---|
| 128.14.227.37 | 14 | UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED | TW |
| 118.194.250.2 | 7 | UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED | TH |
| 152.32.174.186 | 7 | UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED | HK |
| 86.54.31.36 | 6 | Black HOST Ltd | CA |
| 193.8.186.31 | 4 | PebbleHost Ltd | SG |
| 118.194.250.113 | 3 | UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED | TH |
| 152.32.225.11 | 3 | UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED | HK |
| 183.204.62.124 | 3 | China Mobile Communications Group Co., Ltd. | CN |
Networks it comes from
| ASN | Organisation | Probes | Source IPs |
|---|---|---|---|
| AS135377 | UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED | 34 | 5 |
| AS396982 | Google LLC | 29 | 29 |
| AS45102 | Alibaba (US) Technology Co., Ltd. | 6 | 4 |
| AS12989 | Black HOST Ltd | 6 | 1 |
| AS201002 | PebbleHost Ltd | 4 | 1 |
| AS9808 | China Mobile Communications Group Co., Ltd. | 3 | 1 |
Where it comes from
| Country | Probes |
|---|---|
| United States | 33 |
| Taiwan | 14 |
| Hong Kong | 10 |
| Thailand | 10 |
| Canada | 6 |
| Singapore | 4 |
Client strings seen on this port
| User agent | Probes |
|---|---|
| Hello from Palo Alto Networks, find out more about our scans in https://docs-cortex.paloaltonetworks.com/r/1/Cortex-Xpanse/Scanning-activity | 29 |
| Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 Edg/120.0.0.0 | 16 |
| Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 | 5 |
| Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36 | 4 |
| curl/7.29.0 | 4 |
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