Port 5903
HoneyLabs honeypots recorded 260 probes against destination port 5903 from 101 distinct source IP addresses in the last 7 days.
First observed 2026-09-23 12:15:00, most recently 2026-09-30 11:38:24 (UTC).
Most active source addresses
| Source IP | Probes | Network | Country |
|---|---|---|---|
| 167.94.146.52 | 16 | Censys, Inc. | US |
| 66.132.195.75 | 8 | Censys, Inc. | US |
| 66.132.172.128 | 8 | Censys, Inc. | US |
| 199.45.155.23 | 8 | Censys, Inc. | US |
| 167.94.146.61 | 8 | Censys, Inc. | US |
| 167.94.146.50 | 8 | Censys, Inc. | US |
| 207.90.244.17 | 8 | Cogent Communications, LLC | US |
| 167.94.146.58 | 8 | Censys, Inc. | US |
Networks it comes from
| ASN | Organisation | Probes | Source IPs |
|---|---|---|---|
| AS398324 | Censys, Inc. | 82 | 12 |
| AS398705 | Censys, Inc. | 48 | 5 |
| AS398722 | Censys, Inc. | 32 | 4 |
| AS8075 | Microsoft Corporation | 31 | 31 |
| AS45102 | Alibaba (US) Technology Co., Ltd. | 12 | 9 |
| AS174 | Cogent Communications, LLC | 8 | 1 |
Where it comes from
| Country | Probes |
|---|---|
| United States | 229 |
| Iran | 8 |
| China | 6 |
| Singapore | 3 |
| Canada | 2 |
| Vietnam | 2 |
Client strings seen on this port
| User agent | Probes |
|---|---|
| Mozilla/5.0 (compatible; CensysInspect/1.1; +https://about.censys.io/) | 118 |
| 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 | 7 |
| Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:134.0) Gecko/20100101 Firefox/134.0 | 7 |
| Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.5005.63 Safari/537.36 | 4 |
| curl/7.61.1 | 4 |
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