UDP traffic

Datagrams matching asn:401661 sent to HoneyLabs sensors over UDP in the last 24 hours. 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.

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2 datagrams from 1 source

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

SIP 2

Latest SIP datagram, to 5060/udp

OPTIONS sip:1@1 SIP/2.0 Via: SIP/2.0/UDP 1:5060;branch=z From: <sip:1@1>;tag=1 To: <sip:1@1> Call-ID: 1 CSeq: 1 OPTIONS Content-Length: 0

payload bytes

00000000  4f 50 54 49 4f 4e 53 20  73 69 70 3a 31 40 31 20  |OPTIONS sip:1@1 |
00000010  53 49 50 2f 32 2e 30 0d  0a 56 69 61 3a 20 53 49  |SIP/2.0..Via: SI|
00000020  50 2f 32 2e 30 2f 55 44  50 20 31 3a 35 30 36 30  |P/2.0/UDP 1:5060|
00000030  3b 62 72 61 6e 63 68 3d  7a 0d 0a 46 72 6f 6d 3a  |;branch=z..From:|
00000040  20 3c 73 69 70 3a 31 40  31 3e 3b 74 61 67 3d 31  | <sip:1@1>;tag=1|
00000050  0d 0a 54 6f 3a 20 3c 73  69 70 3a 31 40 31 3e 0d  |..To: <sip:1@1>.|
00000060  0a 43 61 6c 6c 2d 49 44  3a 20 31 0d 0a 43 53 65  |.Call-ID: 1..CSe|
00000070  71 3a 20 31 20 4f 50 54  49 4f 4e 53 0d 0a 43 6f  |q: 1 OPTIONS..Co|
00000080  6e 74 65 6e 74 2d 4c 65  6e 67 74 68 3a 20 30 0d  |ntent-Length: 0.|
00000090  0a 0d 0a                                          |...|

Destination ports

5060/udp SIP2

Networks

AS401661 EMBNEX, LLC from 1 source2

Countries

BR Brazil2

Source addresses (unverified)

Address	Network	Cc	Sends	Datagrams	Last seen (UTC)
16.5.0.234	AS401661 EMBNEX, LLC	BR	SIP	2	2026-10-10 07:10

Latest datagrams

2026-10-10 07:10:0016.5.0.234to 5060/udpSIPBR

OPTIONS sip:1@1 SIP/2.0 Via: SIP/2.0/UDP 1:5060;branch=z From: <sip:1@1>;tag=1 To: <sip:1@1> Call-ID: 1 CSeq: 1 OPTIONS Content-Length: 0

payload bytes

00000000  4f 50 54 49 4f 4e 53 20  73 69 70 3a 31 40 31 20  |OPTIONS sip:1@1 |
00000010  53 49 50 2f 32 2e 30 0d  0a 56 69 61 3a 20 53 49  |SIP/2.0..Via: SI|
00000020  50 2f 32 2e 30 2f 55 44  50 20 31 3a 35 30 36 30  |P/2.0/UDP 1:5060|
00000030  3b 62 72 61 6e 63 68 3d  7a 0d 0a 46 72 6f 6d 3a  |;branch=z..From:|
00000040  20 3c 73 69 70 3a 31 40  31 3e 3b 74 61 67 3d 31  | <sip:1@1>;tag=1|
00000050  0d 0a 54 6f 3a 20 3c 73  69 70 3a 31 40 31 3e 0d  |..To: <sip:1@1>.|
00000060  0a 43 61 6c 6c 2d 49 44  3a 20 31 0d 0a 43 53 65  |.Call-ID: 1..CSe|
00000070  71 3a 20 31 20 4f 50 54  49 4f 4e 53 0d 0a 43 6f  |q: 1 OPTIONS..Co|
00000080  6e 74 65 6e 74 2d 4c 65  6e 67 74 68 3a 20 30 0d  |ntent-Length: 0.|
00000090  0a 0d 0a                                          |...|

2026-10-10 07:07:0516.5.0.234to 5060/udpSIPBR

OPTIONS sip:1@1 SIP/2.0 Via: SIP/2.0/UDP 1:5060;branch=z From: <sip:1@1>;tag=1 To: <sip:1@1> Call-ID: 1 CSeq: 1 OPTIONS Content-Length: 0

payload bytes

00000000  4f 50 54 49 4f 4e 53 20  73 69 70 3a 31 40 31 20  |OPTIONS sip:1@1 |
00000010  53 49 50 2f 32 2e 30 0d  0a 56 69 61 3a 20 53 49  |SIP/2.0..Via: SI|
00000020  50 2f 32 2e 30 2f 55 44  50 20 31 3a 35 30 36 30  |P/2.0/UDP 1:5060|
00000030  3b 62 72 61 6e 63 68 3d  7a 0d 0a 46 72 6f 6d 3a  |;branch=z..From:|
00000040  20 3c 73 69 70 3a 31 40  31 3e 3b 74 61 67 3d 31  | <sip:1@1>;tag=1|
00000050  0d 0a 54 6f 3a 20 3c 73  69 70 3a 31 40 31 3e 0d  |..To: <sip:1@1>.|
00000060  0a 43 61 6c 6c 2d 49 44  3a 20 31 0d 0a 43 53 65  |.Call-ID: 1..CSe|
00000070  71 3a 20 31 20 4f 50 54  49 4f 4e 53 0d 0a 43 6f  |q: 1 OPTIONS..Co|
00000080  6e 74 65 6e 74 2d 4c 65  6e 67 74 68 3a 20 30 0d  |ntent-Length: 0.|
00000090  0a 0d 0a                                          |...|