Port 21287

HoneyLabs honeypots recorded 25 probes against destination port 21287 from 17 distinct source IP addresses in the last 7 days.

First observed 2026-11-09 01:19, most recently 2026-11-15 12:36 (UTC).

What the sensors show

The sources sat in 7 networks across 6 countries. No single address sent more than 24% of them. The largest source network was AS213412 (ONYPHE SAS), with 32% of the probes from 7 addresses. 8 of the 17 busiest addresses are recognised research scanners.

Most active source addresses

Source IPProbesNetworkCountry
86.54.31.446Black HOST LtdCA
195.184.76.972ONYPHE SASUS
192.197.201.1142Ryamer, LLCUS
47.245.131.472Alibaba (US) Technology Co., Ltd.DE
91.230.168.2451ONYPHE SASUS
195.184.76.161ONYPHE SASUS
31.57.216.391VPS Dedicated LLCAE
34.156.152.1751Google LLCBE

Networks it comes from

ASNOrganisationProbesSource IPs
AS213412ONYPHE SAS87
AS12989Black HOST Ltd61
AS396982Google LLC55
AS400587Ryamer, LLC21
AS45102Alibaba (US) Technology Co., Ltd.21
AS215929Data Campus Limited11

Where it comes from

CountryProbes
United States13
Canada6
Belgium2
Germany2
The Netherlands1
United Arab Emirates1

Client strings seen on this port

User agentProbes
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:134.0) Gecko/20100101 Firefox/134.08
Hello from Palo Alto Networks, find out more about our scans in https://docs-cortex.paloaltonetworks.com/r/1/Cortex-Xpanse/Scanning-activity3
Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.363
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.5005.63 Safari/537.363
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.362

Port report

Port report

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