UDP traffic

Datagrams matching port:5673 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

Datagrams

Source addresses

Networks

Countries

Destination ports

Traffic by type

Other services

1 datagrams from 1 source

First packets of sessions with VPN, voice, tunnelling, database and management services.

SOCKS5 1

Latest SOCKS5 datagram, to 5673/udp

·4Vx ·

payload bytes

00000000  05 00 ff ff 00 fe fe fe  fe fd fd fd fd 12 34 56  |..............4V|
00000010  78 0a 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |x...............|
00000020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000000a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000000b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000000c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000000d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000000e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000000f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|

Unrecognised

2 datagrams from 2 sources

Datagrams no decoder recognised. Their first bytes are kept.

Unrecognised 2

Latest Unrecognised datagram, to 5673/udp

@·λ.well-known·core

payload bytes

00000000  40 01 01 ce bb 2e 77 65  6c 6c 2d 6b 6e 6f 77 6e  |@.....well-known|
00000010  04 63 6f 72 65                                    |.core|

Destination ports

5673/udp3

Networks

AS5089 Virgin Media from 1 source1
AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMIT from 1 source1
AS45102 Alibaba (US) Technology Co., Ltd. from 1 source1

Countries

Source addresses (unverified)

Address	Network	Cc	Sends	Datagrams	Last seen (UTC)
150.107.36.236	AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMIT	HK	Unrecognised	1	2026-10-08 22:12
43.98.186.223	AS45102 Alibaba (US) Technology Co., Ltd.	SG	Unrecognised	1	2026-10-06 07:18
81.109.168.33	AS5089 Virgin Media	GB	SOCKS5	1	2026-10-10 12:23

Latest datagrams

2026-10-10 12:23:4681.109.168.33to 5673/udpSOCKS5GB

·4Vx ·

payload bytes

00000000  05 00 ff ff 00 fe fe fe  fe fd fd fd fd 12 34 56  |..............4V|
00000010  78 0a 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |x...............|
00000020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000000a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000000b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000000c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000000d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000000e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000000f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
... 512 bytes shown in part

2026-10-08 22:12:58150.107.36.236to 5673/udpUnrecognisedHK

@·λ.well-known·core

payload bytes

00000000  40 01 01 ce bb 2e 77 65  6c 6c 2d 6b 6e 6f 77 6e  |@.....well-known|
00000010  04 63 6f 72 65                                    |.core|

2026-10-06 07:18:5543.98.186.223to 5673/udpUnrecognisedSG

@·}5·1qaz2wsx3edc

payload bytes

00000000  40 01 7d 35 ff 31 71 61  7a 32 77 73 78 33 65 64  |@.}5.1qaz2wsx3ed|
00000010  63                                                |c|