UDP traffic

Datagrams matching port:17186 sent to HoneyLabs sensors over UDP in the last 7 days. DNS questions and QUIC client fingerprints are decoded on the sensor. Other datagrams are kept as their first bytes and labelled by protocol where it can be recognised.

A UDP source address can be forged, so each address listed here either sent the traffic or was impersonated by whoever did. UDP traffic is kept out of verdicts, feeds, watchlists and alerts.

Clear search

Your plan searches up to 7d, so 30d was shortened. Plans

Datagrams

Source addresses

Networks

Countries

Destination ports

Traffic by type

Service queries

5 datagrams from 5 sources

Requests a service answers without a handshake. Scanners send them to find open DNS, NTP, SNMP or SSDP servers, which are also the servers reflection attacks abuse.

DNS 5

Latest DNS datagram, to 17186/udp

· ·UUUU·U·<·

payload bytes

00000000  1a 09 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |............UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|

Unrecognised

32 datagrams from 28 sources

Datagrams no decoder recognised. Their first bytes are kept.

Unrecognised 32

Latest Unrecognised datagram, to 17186/udp

· ·UUUU·U·<·

payload bytes

00000000  1a 09 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |............UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|

Amplification checks

Probes for services that answer a small request with a much larger reply, the property reflection attacks rely on.

Service	Port	Datagrams	Sources	Factor
DNS	17186/udp	5	5	28 to 54

The factor is how many bytes a reachable server can send back for each byte it receives, as published by CISA in alert TA14-017A.

Destination ports

17186/udp37

Networks

AS398324 Censys, Inc. from 23 sources28
AS213412 ONYPHE SAS from 6 sources6
AS398722 Censys, Inc. from 2 sources3

Countries

Source addresses (unverified)

Address	Network	Cc	Sends	Datagrams	Last seen (UTC)
66.132.172.236	AS398324 Censys, Inc.	US	Unrecognised	3	2026-10-07 06:21
66.132.186.254	AS398324 Censys, Inc.	US	Unrecognised	2	2026-10-11 07:32
66.132.186.215	AS398324 Censys, Inc.	US	Unrecognised	2	2026-10-10 20:22
66.132.224.17	AS398324 Censys, Inc.	US	Unrecognised	2	2026-10-09 16:14
199.45.154.181	AS398722 Censys, Inc.	US	DNS	2	2026-10-07 04:44
91.231.89.88	AS213412 ONYPHE SAS	FR	Unrecognised	1	2026-10-08 08:50
66.132.159.33	AS398324 Censys, Inc.	US	Unrecognised	1	2026-10-09 20:02
66.132.224.24	AS398324 Censys, Inc.	US	DNS	1	2026-10-05 20:45
66.132.172.230	AS398324 Censys, Inc.	US	Unrecognised	1	2026-10-08 08:35
66.132.172.228	AS398324 Censys, Inc.	US	DNS	1	2026-10-05 21:16
66.132.186.250	AS398324 Censys, Inc.	US	Unrecognised	1	2026-10-07 07:22
66.132.186.249	AS398324 Censys, Inc.	US	Unrecognised	1	2026-10-10 05:57
66.132.186.207	AS398324 Censys, Inc.	US	Unrecognised	1	2026-10-06 15:35
91.230.168.216	AS213412 ONYPHE SAS	US	Unrecognised	1	2026-10-08 08:39
91.230.168.116	AS213412 ONYPHE SAS	US	Unrecognised	1	2026-10-09 05:44
66.132.186.219	AS398324 Censys, Inc.	US	DNS	1	2026-10-06 05:55
66.132.224.20	AS398324 Censys, Inc.	US	Unrecognised	1	2026-10-11 04:05
66.132.186.212	AS398324 Censys, Inc.	US	Unrecognised	1	2026-10-07 13:20
66.132.186.243	AS398324 Censys, Inc.	US	Unrecognised	1	2026-10-08 06:28
66.132.159.41	AS398324 Censys, Inc.	US	Unrecognised	1	2026-10-09 10:53

Latest datagrams

2026-10-11 08:10:4166.132.186.240to 17186/udpUnrecognisedUS

· ·UUUU·U·<·

payload bytes

00000000  1a 09 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |............UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|

2026-10-11 07:32:0466.132.186.254to 17186/udpUnrecognisedUS

· ·UUUU·U·<·

payload bytes

00000000  1a 09 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |............UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|

2026-10-11 06:10:3066.132.186.254to 17186/udpUnrecognisedUS

· ·UUUU·U·<·

payload bytes

00000000  1a 09 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |............UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|

2026-10-11 04:34:5566.132.224.16to 17186/udpUnrecognisedUS

· ·UUUU·U·<·

payload bytes

00000000  1a 09 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |............UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|

2026-10-11 04:05:2466.132.224.20to 17186/udpUnrecognisedUS

· ·UUUU·U·<·

payload bytes

00000000  1a 09 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |............UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|

2026-10-10 20:22:3566.132.186.215to 17186/udpUnrecognisedUS

· ·UUUU·U·<·

payload bytes

00000000  1a 09 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |............UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|

2026-10-10 05:57:4866.132.186.249to 17186/udpUnrecognisedUS

· ·UUUU·U·<·

payload bytes

00000000  1a 09 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |............UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|

2026-10-09 20:02:5166.132.159.33to 17186/udpUnrecognisedUS

· ·UUUU·U·<·

payload bytes

00000000  1a 09 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |............UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|

2026-10-09 16:14:0666.132.224.17to 17186/udpUnrecognisedUS

· ·UUUU·U·<·

payload bytes

00000000  1a 09 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |............UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|

2026-10-09 12:59:0166.132.186.208to 17186/udpUnrecognisedUS

· ·UUUU·U·<·

payload bytes

00000000  1a 09 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |............UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|

2026-10-09 10:53:3166.132.159.41to 17186/udpUnrecognisedUS

· ·UUUU·U·<·

payload bytes

00000000  1a 09 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |............UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|

2026-10-09 05:58:2791.231.89.164to 17186/udpUnrecognisedFR

· ·UUUU·U·<·

payload bytes

00000000  1a 20 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |. ..........UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|

2026-10-09 05:44:0791.230.168.116to 17186/udpUnrecognisedUS

· ·UUUU·U·<·

payload bytes

00000000  1a 20 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |. ..........UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|

2026-10-09 03:08:1991.231.89.94to 17186/udpUnrecognisedFR

· ·UUUU·U·<·

payload bytes

00000000  1a 20 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |. ..........UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|

2026-10-09 02:54:1191.230.168.222to 17186/udpUnrecognisedUS

· ·UUUU·U·<·

payload bytes

00000000  1a 20 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |. ..........UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|