UDP traffic

Datagrams matching country:CH 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

Service queries

33 datagrams from 3 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 14 NetBIOS 11 NTP 6 CLDAP 2

Latest DNS datagram, to 53/udp

DNS query A www.google.it

payload bytes

00000000  4b 05 01 00 00 01 00 00  00 00 00 00 03 77 77 77  |K............www|
00000010  06 67 6f 6f 67 6c 65 02  69 74 00 00 01 00 01     |.google.it.....|

Other services

53 datagrams from 3 sources

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

SIP 53

Latest SIP datagram, to 5060/udp

INVITE sip:003908351673002@<HONEYPOT>:5060;transport=UDP SIP/2.0 Via: SIP/2.0/UDP 0.0.0.0:28305;branch=z9hG4bK-524287-1---d5d2098d6c47ed77 From: <sip:16155618900@0.0.0.0>;tag=67814815 To: <sip:003908351673002@<HONEYPOT>:5060> Call-ID: TzqAhurKAq50AFaF8SOZWZ.. CSeq: 15 INVITE Contact: <sip:1615

Payload bytes withheld: they contain the sensor's address.

Unrecognised

8 datagrams from 1 source

Datagrams no decoder recognised. Their first bytes are kept.

Unrecognised 8

Latest Unrecognised datagram, to 11211/udp

ZM·stats items

payload bytes

00000000  5a 4d 00 00 00 01 00 00  73 74 61 74 73 20 69 74  |ZM......stats it|
00000010  65 6d 73 0d 0a                                    |ems..|

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	53/udp	14	3	28 to 54
NetBIOS	137/udp +1	11	1	3.8
NTP	123/udp	6	1	556.9
Memcached	11211/udp	3	1	10,000 to 51,000
CLDAP	389/udp	2	1	56 to 70

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

5060/udp SIP42
53/udp DNS14
123/udp NTP6
137/udp NetBIOS6
139/udp NetBIOS5
3389/udp5
5062/udp SIP4
5080/udp SIP4
5090/udp SIP3
11211/udp Memcached3
389/udp CLDAP2

DNS questions

DNS record types

TXT8
A6

Networks

AS51852 Private Layer INC from 3 sources53
AS264617 GRUPO PANAGLOBAL 15 S.A from 1 source37
AS396982 Google LLC from 2 sources4

Countries

CH Switzerland94

Source addresses (unverified)

Address	Network	Cc	Sends	Datagrams	Last seen (UTC)
185.191.236.38	AS264617 GRUPO PANAGLOBAL 15 S.A	CH	DNS	37	2026-10-10 22:34
179.43.167.3	AS51852 Private Layer INC	CH	SIP	34	2026-10-11 09:46
179.43.134.194	AS51852 Private Layer INC	CH	SIP	11	2026-10-09 17:00
31.7.60.66	AS51852 Private Layer INC	CH	SIP	8	2026-10-10 06:25
34.65.23.20	AS396982 Google LLC	CH	DNS	2	2026-10-06 08:08
34.65.203.85	AS396982 Google LLC	CH	DNS	2	2026-10-06 08:42

Latest datagrams

2026-10-11 09:46:16179.43.167.3to 5060/udpSIPCH
INVITE sip:003908351673002@<HONEYPOT>:5060;transport=UDP SIP/2.0 Via: SIP/2.0/UDP 0.0.0.0:28305;branch=z9hG4bK-524287-1---d5d2098d6c47ed77 From: <sip:16155618900@0.0.0.0>;tag=67814815 To: <sip:0039
Payload bytes withheld: they contain the sensor's address.
2026-10-11 04:32:33179.43.167.3to 5060/udpSIPCH
INVITE sip:003908351673002@<HONEYPOT>:5060;transport=UDP SIP/2.0 Via: SIP/2.0/UDP 0.0.0.0:28305;branch=z9hG4bK-524287-1---4086aa0c94b56842 From: <sip:13977481030@0.0.0.0>;tag=25c0b9c7 To: <sip:0039
Payload bytes withheld: they contain the sensor's address.
2026-10-11 03:22:59179.43.167.3to 5060/udpSIPCH
INVITE sip:003908351673002@<HONEYPOT>:5060;transport=UDP SIP/2.0 Via: SIP/2.0/UDP 0.0.0.0:28305;branch=z9hG4bK-524287-1---b7f324a56a230346 From: <sip:13493984677@0.0.0.0>;tag=6e03dcd3 To: <sip:0039
Payload bytes withheld: they contain the sensor's address.
2026-10-11 01:35:33179.43.167.3to 5060/udpSIPCH
INVITE sip:90113908351673002@<HONEYPOT>:5060;transport=UDP SIP/2.0 Via: SIP/2.0/UDP 0.0.0.0:25139;branch=z9hG4bK-524287-1---43458a4794e02248 From: <sip:16155618900@0.0.0.0>;tag=6844eb76 To: <sip:90
Payload bytes withheld: they contain the sensor's address.

2026-10-10 22:34:31185.191.236.38to 139/udpNetBIOSCH

NetBIOS node status query *

payload bytes

00000000  e5 d8 00 00 00 01 00 00  00 00 00 00 20 43 4b 41  |............ CKA|
00000010  41 41 41 41 41 41 41 41  41 41 41 41 41 41 41 41  |AAAAAAAAAAAAAAAA|
00000020  41 41 41 41 41 41 41 41  41 41 41 41 41 00 00 21  |AAAAAAAAAAAAA..!|
00000030  00 01                                             |..|

2026-10-10 22:33:22185.191.236.38to 139/udpNetBIOSCH

NetBIOS node status query *

payload bytes

00000000  e5 d8 00 00 00 01 00 00  00 00 00 00 20 43 4b 41  |............ CKA|
00000010  41 41 41 41 41 41 41 41  41 41 41 41 41 41 41 41  |AAAAAAAAAAAAAAAA|
00000020  41 41 41 41 41 41 41 41  41 41 41 41 41 00 00 21  |AAAAAAAAAAAAA..!|
00000030  00 01                                             |..|

2026-10-10 22:29:17185.191.236.38to 139/udpNetBIOSCH

NetBIOS node status query *

payload bytes

00000000  e5 d8 00 00 00 01 00 00  00 00 00 00 20 43 4b 41  |............ CKA|
00000010  41 41 41 41 41 41 41 41  41 41 41 41 41 41 41 41  |AAAAAAAAAAAAAAAA|
00000020  41 41 41 41 41 41 41 41  41 41 41 41 41 00 00 21  |AAAAAAAAAAAAA..!|
00000030  00 01                                             |..|

2026-10-10 22:16:13185.191.236.38to 137/udpNetBIOSCH

NetBIOS node status query *

payload bytes

00000000  e5 d8 00 00 00 01 00 00  00 00 00 00 20 43 4b 41  |............ CKA|
00000010  41 41 41 41 41 41 41 41  41 41 41 41 41 41 41 41  |AAAAAAAAAAAAAAAA|
00000020  41 41 41 41 41 41 41 41  41 41 41 41 41 00 00 21  |AAAAAAAAAAAAA..!|
00000030  00 01                                             |..|

2026-10-10 22:15:37185.191.236.38to 137/udpNetBIOSCH

NetBIOS node status query *

payload bytes

00000000  e5 d8 00 00 00 01 00 00  00 00 00 00 20 43 4b 41  |............ CKA|
00000010  41 41 41 41 41 41 41 41  41 41 41 41 41 41 41 41  |AAAAAAAAAAAAAAAA|
00000020  41 41 41 41 41 41 41 41  41 41 41 41 41 00 00 21  |AAAAAAAAAAAAA..!|
00000030  00 01                                             |..|

2026-10-10 22:13:06185.191.236.38to 137/udpNetBIOSCH

NetBIOS node status query *

payload bytes

00000000  e5 d8 00 00 00 01 00 00  00 00 00 00 20 43 4b 41  |............ CKA|
00000010  41 41 41 41 41 41 41 41  41 41 41 41 41 41 41 41  |AAAAAAAAAAAAAAAA|
00000020  41 41 41 41 41 41 41 41  41 41 41 41 41 00 00 21  |AAAAAAAAAAAAA..!|
00000030  00 01                                             |..|

2026-10-10 22:12:31185.191.236.38to 137/udpNetBIOSCH

NetBIOS node status query *

payload bytes

00000000  e5 d8 00 00 00 01 00 00  00 00 00 00 20 43 4b 41  |............ CKA|
00000010  41 41 41 41 41 41 41 41  41 41 41 41 41 41 41 41  |AAAAAAAAAAAAAAAA|
00000020  41 41 41 41 41 41 41 41  41 41 41 41 41 00 00 21  |AAAAAAAAAAAAA..!|
00000030  00 01                                             |..|

2026-10-10 22:05:48185.191.236.38to 137/udpNetBIOSCH

NetBIOS node status query *

payload bytes

00000000  e5 d8 00 00 00 01 00 00  00 00 00 00 20 43 4b 41  |............ CKA|
00000010  41 41 41 41 41 41 41 41  41 41 41 41 41 41 41 41  |AAAAAAAAAAAAAAAA|
00000020  41 41 41 41 41 41 41 41  41 41 41 41 41 00 00 21  |AAAAAAAAAAAAA..!|
00000030  00 01                                             |..|

2026-10-10 22:05:12185.191.236.38to 137/udpNetBIOSCH

NetBIOS node status query *

payload bytes

00000000  e5 d8 00 00 00 01 00 00  00 00 00 00 20 43 4b 41  |............ CKA|
00000010  41 41 41 41 41 41 41 41  41 41 41 41 41 41 41 41  |AAAAAAAAAAAAAAAA|
00000020  41 41 41 41 41 41 41 41  41 41 41 41 41 00 00 21  |AAAAAAAAAAAAA..!|
00000030  00 01                                             |..|

2026-10-10 21:28:12185.191.236.38to 123/udpNTPCH

·*·

payload bytes

00000000  17 00 03 2a 00 00 00 00  00 00 00 00 00 00 00 00  |...*............|
00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
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  |................|

2026-10-10 21:27:26185.191.236.38to 123/udpNTPCH

·O#Kq·R·

payload bytes

00000000  e3 00 04 fa 00 01 00 00  00 01 00 00 00 00 00 00  |................|
00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  c5 4f 23 4b 71 b1 52 f3  |.........O#Kq.R.|