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UDP traffic

Datagrams matching qname:"a" 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

307

Datagrams

177

Source addresses

34

Networks

16

Countries

38

Destination ports

Traffic by type

Service queries

307 datagrams from 177 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 307

Latest DNS datagram, to 5353/udp

DNS query PTR _services._dns-sd._udp.local

payload bytes
00000000  00 00 00 00 00 01 00 00  00 00 00 00 09 5f 73 65  |............._se|
00000010  72 76 69 63 65 73 07 5f  64 6e 73 2d 73 64 04 5f  |rvices._dns-sd._|
00000020  75 64 70 05 6c 6f 63 61  6c 00 00 0c 00 01        |udp.local.....|

Amplification checks

Probes for services that answer a small request with a much larger reply, the property reflection attacks rely on.

ServicePortDatagramsSourcesFactor
DNS53/udp +31749328 to 54
mDNS5353/udp133912 to 10

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

DNS questions

DNS record types

Networks

Countries

Source addresses (unverified)

AddressNetworkCcSendsDatagramsLast seen (UTC)
193.47.62.187AS216014 BestDC LimitedBGDNS262026-10-07 11:10
66.132.172.249AS398324 Censys, Inc.USDNS182026-10-10 19:14
66.132.172.244AS398324 Censys, Inc.USDNS132026-10-10 12:54
139.162.66.65AS63949 Akamai Connected CloudJPDNS102026-10-10 18:01
16.5.0.234AS401661 EMBNEX, LLCBRDNS82026-10-05 17:01
18.226.68.29AS16509 Amazon.com, Inc.USDNS52026-10-06 13:12
45.205.1.164AS215925 Vpsvault.host LtdBRDNS42026-10-06 22:16
174.138.40.30AS14061 DigitalOcean, LLCUSDNS42026-10-10 08:59
43.134.56.104AS132203 Tencent Building, Kejizhongyi AvenueSGDNS42026-10-10 14:44
141.22.28.227AS680 Verein zur Foerderung eines Deutschen FoDEDNS42026-10-10 02:45
146.88.241.100AS20052 Arbor Networks, Inc.USDNS32026-10-11 03:03
52.14.245.101AS16509 Amazon.com, Inc.USDNS32026-10-08 12:08
130.245.42.162AS5719 State University of New York at Stony BrUSDNS32026-10-06 02:03
47.84.179.21AS45102 Alibaba (US) Technology Co., Ltd.SGDNS32026-10-06 17:03
172.104.155.101AS63949 Akamai Connected CloudDEDNS32026-10-05 16:57
47.245.84.83AS45102 Alibaba (US) Technology Co., Ltd.SGDNS32026-10-10 05:05
192.87.173.76AS1103 SURF B.V.NLDNS32026-10-05 13:13
146.88.241.70AS20052 Arbor Networks, Inc.USDNS32026-10-11 02:25
93.158.165.179AS13238 YANDEX LLCRUDNS32026-10-10 17:30
203.55.131.5AS32475 Internap Holding LLCUSDNS22026-10-07 01:23

Latest datagrams