Port 4003
HoneyLabs honeypots recorded 44 probes against destination port 4003 from 23 distinct source IP addresses in the last 7 days.
First observed 2026-10-29 18:23, most recently 2026-11-04 14:33 (UTC).
What the sensors show
The sources sat in 13 networks across 9 countries. No single address sent more than 14% of them. The largest source network was AS213412 (ONYPHE SAS), with 18% of the probes from 8 addresses. 10 of the 23 busiest addresses are recognised research scanners.
Most active source addresses
| Source IP | Probes | Network | Country |
|---|---|---|---|
| 36.156.22.2 | 6 | China Mobile communications corporation | CN |
| 148.153.189.62 | 6 | CDS Global Cloud Co., Ltd | US |
| 165.154.163.10 | 6 | UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED | US |
| 192.253.248.251 | 3 | Limited Network LTD | NL |
| 213.177.179.195 | 2 | Feo Prest SRL | IR |
| 45.131.155.103 | 2 | Detai Prosperous Technologies Limited | US |
| 185.136.15.153 | 2 | AO ALMAZ | KZ |
| 87.251.64.131 | 2 | Shesternin Vladimir Anatolievich | RU |
Networks it comes from
| ASN | Organisation | Probes | Source IPs |
|---|---|---|---|
| AS213412 | ONYPHE SAS | 8 | 8 |
| AS135377 | UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED | 6 | 1 |
| AS63199 | CDS Global Cloud Co., Ltd | 6 | 1 |
| AS56046 | China Mobile communications corporation | 6 | 1 |
| AS212512 | Detai Prosperous Technologies Limited | 4 | 3 |
| AS213790 | Limited Network LTD | 3 | 1 |
Where it comes from
| Country | Probes |
|---|---|
| United States | 15 |
| France | 10 |
| China | 6 |
| The Netherlands | 3 |
| Russia | 3 |
| Kazakhstan | 2 |
Client strings seen on this port
| User agent | Probes |
|---|---|
| Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4 240.111 Safari/537.36 | 15 |
| Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:134.0) Gecko/20100101 Firefox/134.0 | 8 |
| Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36 ModatScanner/1.2 (+https://modat.io/) | 2 |
| Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36 | 2 |
| Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36 | 1 |
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