Port 5903
HoneyLabs honeypots recorded 383 probes against destination port 5903 from 94 distinct source IP addresses in the last 7 days.
First observed 2026-11-08 12:18, most recently 2026-11-15 08:28 (UTC).
What the sensors show
The sources sat in 16 networks across 9 countries. No single address sent more than 4% of them. The largest source network was AS398324 (Censys, Inc.), with 48% of the probes from 23 addresses. 25 of the 25 busiest addresses are recognised research scanners.
Most active source addresses
| Source IP | Probes | Network | Country |
|---|---|---|---|
| 66.132.195.110 | 16 | Censys, Inc. | US |
| 167.94.146.54 | 16 | Censys, Inc. | US |
| 66.132.195.60 | 8 | Censys, Inc. | US |
| 66.132.159.105 | 8 | Censys, Inc. | US |
| 167.94.146.53 | 8 | Censys, Inc. | US |
| 66.132.186.203 | 8 | Censys, Inc. | US |
| 66.132.224.90 | 8 | Censys, Inc. | US |
| 167.94.146.52 | 8 | Censys, Inc. | US |
Networks it comes from
| ASN | Organisation | Probes | Source IPs |
|---|---|---|---|
| AS398324 | Censys, Inc. | 182 | 23 |
| AS15169 | Google LLC | 84 | 26 |
| AS398705 | Censys, Inc. | 56 | 6 |
| AS14061 | DigitalOcean, LLC | 18 | 3 |
| AS8075 | Microsoft Corporation | 15 | 15 |
| AS213412 | ONYPHE SAS | 8 | 8 |
Where it comes from
| Country | Probes |
|---|---|
| United States | 279 |
| Belgium | 84 |
| The Netherlands | 9 |
| China | 5 |
| Romania | 2 |
| Iran | 1 |
Client strings seen on this port
| User agent | Probes |
|---|---|
| Mozilla/5.0 (compatible; CensysInspect/1.1; +https://about.censys.io/) | 176 |
| Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36 | 21 |
| Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36 | 15 |
| Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:134.0) Gecko/20100101 Firefox/134.0 | 8 |
| 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 |
Port report
Port report
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