UDP traffic
Datagrams matching proto:netbios 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.
62
Datagrams
42
Source addresses
23
Networks
14
Countries
4
Destination ports
Traffic by type
Service queries
62 datagrams from 42 sourcesRequests 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.
Latest NetBIOS datagram, to 137/udp
payload bytes
00000000 80 f0 00 10 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 |..|
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 |
|---|---|---|---|---|
| NetBIOS | 137/udp +3 | 62 | 42 | 3.8 |
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
Networks
- AS215925 Vpsvault.host Ltd from 2 sources8
- AS8075 Microsoft Corporation from 7 sources7
- AS264617 GRUPO PANAGLOBAL 15 S.A from 3 sources6
- AS63949 Akamai Connected Cloud from 3 sources6
- AS12876 Scaleway SAS from 1 source4
- AS6939 Hurricane Electric LLC from 4 sources4
- AS20052 Arbor Networks, Inc. from 3 sources4
- AS398324 Censys, Inc. from 2 sources3
- AS51115 HLL LLC from 1 source3
- AS209605 UAB Host Baltic from 1 source2
Countries
Source addresses (unverified)
| Address | Network | Cc | Sends | Datagrams | Last seen (UTC) |
|---|---|---|---|---|---|
| 45.205.1.231 | AS215925 Vpsvault.host Ltd | BR | NetBIOS | 4 | 2026-10-06 10:03 |
| 172.104.233.204 | AS63949 Akamai Connected Cloud | DE | NetBIOS | 4 | 2026-10-06 07:39 |
| 62.210.90.215 | AS12876 Scaleway SAS | FR | NetBIOS | 4 | 2026-10-06 16:53 |
| 45.198.224.251 | AS215925 Vpsvault.host Ltd | US | NetBIOS | 4 | 2026-10-06 09:39 |
| 185.94.111.1 | AS51115 HLL LLC | RU | NetBIOS | 3 | 2026-10-06 11:26 |
| 146.88.240.28 | AS20052 Arbor Networks, Inc. | US | NetBIOS | 2 | 2026-10-06 05:26 |
| 185.36.81.23 | AS209605 UAB Host Baltic | LT | NetBIOS | 2 | 2026-10-06 13:12 |
| 66.132.172.242 | AS398324 Censys, Inc. | US | NetBIOS | 2 | 2026-10-06 09:35 |
| 170.231.237.214 | AS264617 GRUPO PANAGLOBAL 15 S.A | PA | NetBIOS | 2 | 2026-10-06 00:27 |
| 170.231.236.98 | AS264617 GRUPO PANAGLOBAL 15 S.A | PA | NetBIOS | 2 | 2026-10-06 01:22 |
| 185.191.236.38 | AS264617 GRUPO PANAGLOBAL 15 S.A | CH | NetBIOS | 2 | 2026-10-06 01:22 |
| 80.82.77.33 | AS202425 IP Volume inc | NL | NetBIOS | 1 | 2026-10-06 21:33 |
| 20.168.11.188 | AS8075 Microsoft Corporation | US | NetBIOS | 1 | 2026-10-06 01:53 |
| 182.48.201.142 | AS45769 D-Vois Broadband Pvt Ltd | IN | NetBIOS | 1 | 2026-10-06 08:39 |
| 191.95.52.36 | AS13489 UNE EPM TELECOMUNICACIONES S.A. | CO | NetBIOS | 1 | 2026-10-06 21:20 |
| 172.81.142.114 | AS36498 Access One Inc. | US | NetBIOS | 1 | 2026-10-06 00:19 |
| 20.127.150.73 | AS8075 Microsoft Corporation | US | NetBIOS | 1 | 2026-10-06 21:28 |
| 41.226.180.220 | AS37705 TOPNET | TN | NetBIOS | 1 | 2026-10-06 10:00 |
| 20.65.202.224 | AS8075 Microsoft Corporation | US | NetBIOS | 1 | 2026-10-06 21:29 |
| 147.185.132.138 | AS396982 Google LLC | US | NetBIOS | 1 | 2026-10-06 03:31 |
Latest datagrams
payload bytes
00000000 80 f0 00 10 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 |..|
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 |..|
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 |..|
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 |..|
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 |..|
payload bytes
00000000 f5 d6 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 |..|
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 |..|
payload bytes
00000000 b3 2d 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 |..|
payload bytes
00000000 80 f0 00 10 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 |..|
payload bytes
00000000 13 37 00 00 00 01 00 00 00 00 00 00 20 43 4b 41 |.7.......... 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 |..|
payload bytes
00000000 a2 48 00 00 00 01 00 00 00 00 00 00 20 43 4b 41 |.H.......... 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 |..|
payload bytes
00000000 58 8d 00 00 00 01 00 00 00 00 00 00 20 43 4b 41 |X........... 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 |..|
payload bytes
00000000 47 8d 01 00 00 01 00 00 00 00 00 00 20 43 4b 41 |G........... 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 |..|
payload bytes
00000000 35 37 01 00 00 01 00 00 00 00 00 00 20 43 4b 41 |57.......... 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 |..|
payload bytes
00000000 85 93 01 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 |..|