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UDP traffic

Datagrams matching qname:"_device-info._tcp.local" 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

Your plan searches up to 7d, so 30d was shortened. Plans

6

Datagrams

6

Source addresses

2

Networks

1

Countries

1

Destination ports

Traffic by type

Service queries

6 datagrams from 6 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 6

Latest DNS datagram, to 5353/udp

DNS query PTR _device-info._tcp.local

payload bytes
00000000  62 b9 01 20 00 01 00 00  00 00 00 01 0c 5f 64 65  |b.. ........._de|
00000010  76 69 63 65 2d 69 6e 66  6f 04 5f 74 63 70 05 6c  |vice-info._tcp.l|
00000020  6f 63 61 6c 00 00 0c 00  01 00 00 29 04 d0 00 00  |ocal.......)....|
00000030  00 00 00 0c 00 0a 00 08  83 4c 64 dd ca ac 8f 65  |.........Ld....e|

Amplification checks

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

ServicePortDatagramsSourcesFactor
mDNS5353/udp662 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)
203.55.131.5AS32475 Internap Holding LLCUSDNS12026-10-07 01:23
194.164.107.4AS50219 Valence Technology Co.USDNS12026-10-05 13:22
216.226.76.20AS50219 Valence Technology Co.USDNS12026-10-07 16:21
216.226.78.20AS50219 Valence Technology Co.USDNS12026-10-09 14:12
216.226.77.30AS50219 Valence Technology Co.USDNS12026-10-10 13:14
216.226.76.30AS50219 Valence Technology Co.USDNS12026-10-07 20:35

Latest datagrams