UDP traffic
Datagrams matching asn:16276 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.
346
Datagrams
14
Source addresses
1
Networks
5
Countries
39
Destination ports
Traffic by type
Other services
335 datagrams from 10 sourcesFirst packets of sessions with VPN, voice, tunnelling, database and management services.
Latest SIP datagram, to 5060/udp
Payload bytes withheld: they contain the sensor's address.
Unrecognised
11 datagrams from 4 sourcesDatagrams no decoder recognised. Their first bytes are kept.
Latest Unrecognised datagram, to 30301/udp
payload bytes
00000000 41 2e 57 71 68 54 51 3d 00 7d 2e 72 37 5c 75 5d |A.WqhTQ=.}.r7\u]| 00000010 0c 75 51 1e 31 05 0f 7a 22 3c 1d 25 4a 6e 34 0c |.uQ.1..z"<.%Jn4.| 00000020 38 0c 7d 20 60 4e 5d 61 4b 0b 53 02 68 48 5f 74 |8.} `N]aK.S.hH_t| 00000030 3d 31 12 6e 36 21 69 58 5d 06 70 31 |=1.n6!iX].p1|
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 |
|---|---|---|---|---|
| SSDP | 1900/udp | 3 | 1 | 30.8 |
| mDNS | 5353/udp | 1 | 1 | 2 to 10 |
| Memcached | 11211/udp | 1 | 1 | 10,000 to 51,000 |
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.
Source addresses (unverified)
| Address | Network | Cc | Sends | Datagrams | Last seen (UTC) |
|---|---|---|---|---|---|
| 135.148.29.54 | AS16276 OVH SAS | US | SIP | 113 | 2026-10-11 04:31 |
| 198.244.200.163 | AS16276 OVH SAS | GB | SIP | 70 | 2026-10-11 03:05 |
| 51.161.136.177 | AS16276 OVH SAS | AU | SIP | 56 | 2026-10-11 03:09 |
| 51.161.57.3 | AS16276 OVH SAS | CA | SIP | 56 | 2026-10-10 14:23 |
| 5.39.125.103 | AS16276 OVH SAS | FR | SIP | 13 | 2026-10-10 22:40 |
| 51.178.198.251 | AS16276 OVH SAS | FR | SIP | 8 | 2026-10-11 03:06 |
| 167.114.107.175 | AS16276 OVH SAS | CA | Unrecognised | 7 | 2026-10-07 14:11 |
| 51.38.221.109 | AS16276 OVH SAS | FR | SIP | 6 | 2026-10-08 14:02 |
| 5.196.61.130 | AS16276 OVH SAS | FR | SIP | 5 | 2026-10-11 02:51 |
| 5.135.106.85 | AS16276 OVH SAS | FR | SIP | 4 | 2026-10-07 09:53 |
| 162.19.19.234 | AS16276 OVH SAS | FR | SIP | 4 | 2026-10-09 21:58 |
| 51.75.24.26 | AS16276 OVH SAS | FR | Unrecognised | 2 | 2026-10-08 17:15 |
| 51.161.33.215 | AS16276 OVH SAS | CA | Unrecognised | 1 | 2026-10-10 11:37 |
| 151.80.60.145 | AS16276 OVH SAS | FR | Unrecognised | 1 | 2026-10-10 14:23 |
Latest datagrams
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.
payload bytes
00000000 52 45 47 49 53 54 45 52 20 73 69 70 3a 63 68 69 |REGISTER sip:chi| 00000010 6e 61 6d 6f 62 69 6c 65 2e 63 6f 6d 20 53 49 50 |namobile.com SIP| 00000020 2f 32 2e 30 0d 0a 56 69 61 3a 20 53 49 50 2f 32 |/2.0..Via: SIP/2| 00000030 2e 30 2f 55 44 50 20 35 31 2e 31 37 38 2e 31 39 |.0/UDP 51.178.19| 00000040 38 2e 32 35 31 3a 34 30 34 30 3b 62 72 61 6e 63 |8.251:4040;branc| 00000050 68 3d 7a 39 68 47 34 62 4b 31 32 33 0d 0a 4d 61 |h=z9hG4bK123..Ma| 00000060 78 2d 46 6f 72 77 61 72 64 73 3a 20 37 30 0d 0a |x-Forwards: 70..| 00000070 46 72 6f 6d 3a 20 3c 73 69 70 3a 6d 65 40 63 68 |From: <sip:me@ch| 00000080 69 6e 61 6d 6f 62 69 6c 65 2e 63 6f 6d 3e 3b 74 |inamobile.com>;t| 00000090 61 67 3d 31 32 35 36 33 0d 0a 54 6f 3a 20 3c 73 |ag=12563..To: <s| 000000a0 69 70 3a 6d 65 40 63 68 69 6e 61 6d 6f 62 69 6c |ip:me@chinamobil| 000000b0 65 2e 63 6f 6d 3e 0d 0a 43 61 6c 6c 2d 49 44 3a |e.com>..Call-ID:| 000000c0 20 33 6e 50 6a 39 65 57 4f 76 46 6c 70 4d 48 6e | 3nPj9eWOvFlpMHn| 000000d0 0d 0a 43 53 65 71 3a 20 31 20 52 45 47 49 53 54 |..CSeq: 1 REGIST| 000000e0 45 52 0d 0a 43 6f 6e 74 61 63 74 3a 20 3c 73 69 |ER..Contact: <si| 000000f0 70 3a 6d 65 40 35 31 2e 31 37 38 2e 31 39 38 2e |p:me@51.178.198.| ... 440 bytes shown in part
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.
payload bytes
00000000 52 45 47 49 53 54 45 52 20 73 69 70 3a 63 68 69 |REGISTER sip:chi| 00000010 6e 61 6d 6f 62 69 6c 65 2e 63 6f 6d 20 53 49 50 |namobile.com SIP| 00000020 2f 32 2e 30 0d 0a 56 69 61 3a 20 53 49 50 2f 32 |/2.0..Via: SIP/2| 00000030 2e 30 2f 55 44 50 20 35 31 2e 31 37 38 2e 31 39 |.0/UDP 51.178.19| 00000040 38 2e 32 35 31 3a 34 30 34 30 3b 62 72 61 6e 63 |8.251:4040;branc| 00000050 68 3d 7a 39 68 47 34 62 4b 31 32 33 0d 0a 4d 61 |h=z9hG4bK123..Ma| 00000060 78 2d 46 6f 72 77 61 72 64 73 3a 20 37 30 0d 0a |x-Forwards: 70..| 00000070 46 72 6f 6d 3a 20 3c 73 69 70 3a 6d 65 40 63 68 |From: <sip:me@ch| 00000080 69 6e 61 6d 6f 62 69 6c 65 2e 63 6f 6d 3e 3b 74 |inamobile.com>;t| 00000090 61 67 3d 31 32 35 36 33 0d 0a 54 6f 3a 20 3c 73 |ag=12563..To: <s| 000000a0 69 70 3a 6d 65 40 63 68 69 6e 61 6d 6f 62 69 6c |ip:me@chinamobil| 000000b0 65 2e 63 6f 6d 3e 0d 0a 43 61 6c 6c 2d 49 44 3a |e.com>..Call-ID:| 000000c0 20 49 36 6b 4a 6f 53 32 4d 67 67 50 33 7a 6e 39 | I6kJoS2MggP3zn9| 000000d0 0d 0a 43 53 65 71 3a 20 31 20 52 45 47 49 53 54 |..CSeq: 1 REGIST| 000000e0 45 52 0d 0a 43 6f 6e 74 61 63 74 3a 20 3c 73 69 |ER..Contact: <si| 000000f0 70 3a 6d 65 40 35 31 2e 31 37 38 2e 31 39 38 2e |p:me@51.178.198.| ... 440 bytes shown in part
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.