UDP traffic

Datagrams matching qname:"wisc.edu" 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

Datagrams

Source addresses

Networks

Countries

Destination ports

Traffic by type

Service queries

60 datagrams from 3 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 60

Latest DNS datagram, to 53/udp

DNS query ANY wisc.edu

payload bytes

00000000  12 71 01 00 00 01 00 00  00 00 00 01 04 77 69 73  |.q...........wis|
00000010  63 03 65 64 75 00 00 ff  00 01 00 00 29 20 00 00  |c.edu.......) ..|
00000020  00 80 00 00 00                                    |.....|

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
DNS	53/udp	60	3	28 to 54

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

53/udp DNS60

DNS questions

wisc.edu ANY60

DNS record types

ANY60

Networks

AS215925 Vpsvault.host Ltd from 2 sources36
AS209630 LLC Vash Kredit Bank from 1 source24

Countries

Source addresses (unverified)

Address	Network	Cc	Sends	Datagrams	Last seen (UTC)
151.243.11.230	AS209630 LLC Vash Kredit Bank	AE	DNS	24	2026-10-09 20:04
45.205.1.231	AS215925 Vpsvault.host Ltd	BR	DNS	20	2026-10-11 01:20
45.198.224.251	AS215925 Vpsvault.host Ltd	US	DNS	16	2026-10-11 04:18

Latest datagrams

2026-10-11 04:18:3845.198.224.251to 53/udpDNSUS

DNS query ANY wisc.edu

payload bytes

00000000  12 71 01 00 00 01 00 00  00 00 00 01 04 77 69 73  |.q...........wis|
00000010  63 03 65 64 75 00 00 ff  00 01 00 00 29 20 00 00  |c.edu.......) ..|
00000020  00 80 00 00 00                                    |.....|

2026-10-11 01:20:1445.205.1.231to 53/udpDNSBR

DNS query ANY wisc.edu

payload bytes

00000000  12 71 01 00 00 01 00 00  00 00 00 01 04 77 69 73  |.q...........wis|
00000010  63 03 65 64 75 00 00 ff  00 01 00 00 29 20 00 00  |c.edu.......) ..|
00000020  00 80 00 00 00                                    |.....|

2026-10-11 00:49:0445.205.1.231to 53/udpDNSBR

DNS query ANY wisc.edu

payload bytes

00000000  12 71 01 00 00 01 00 00  00 00 00 01 04 77 69 73  |.q...........wis|
00000010  63 03 65 64 75 00 00 ff  00 01 00 00 29 20 00 00  |c.edu.......) ..|
00000020  00 80 00 00 00                                    |.....|

2026-10-11 00:41:2145.205.1.231to 53/udpDNSBR

DNS query ANY wisc.edu

payload bytes

00000000  12 71 01 00 00 01 00 00  00 00 00 01 04 77 69 73  |.q...........wis|
00000010  63 03 65 64 75 00 00 ff  00 01 00 00 29 20 00 00  |c.edu.......) ..|
00000020  00 80 00 00 00                                    |.....|

2026-10-11 00:02:2745.205.1.231to 53/udpDNSBR

DNS query ANY wisc.edu

payload bytes

00000000  12 71 01 00 00 01 00 00  00 00 00 01 04 77 69 73  |.q...........wis|
00000010  63 03 65 64 75 00 00 ff  00 01 00 00 29 20 00 00  |c.edu.......) ..|
00000020  00 80 00 00 00                                    |.....|

2026-10-10 00:25:4045.198.224.251to 53/udpDNSUS

DNS query ANY wisc.edu

payload bytes

00000000  12 71 01 00 00 01 00 00  00 00 00 01 04 77 69 73  |.q...........wis|
00000010  63 03 65 64 75 00 00 ff  00 01 00 00 29 20 00 00  |c.edu.......) ..|
00000020  00 80 00 00 00                                    |.....|

2026-10-10 00:25:2745.198.224.251to 53/udpDNSUS

DNS query ANY wisc.edu

payload bytes

00000000  12 71 01 00 00 01 00 00  00 00 00 01 04 77 69 73  |.q...........wis|
00000010  63 03 65 64 75 00 00 ff  00 01 00 00 29 20 00 00  |c.edu.......) ..|
00000020  00 80 00 00 00                                    |.....|

2026-10-10 00:14:0645.198.224.251to 53/udpDNSUS

DNS query ANY wisc.edu

payload bytes

00000000  12 71 01 00 00 01 00 00  00 00 00 01 04 77 69 73  |.q...........wis|
00000010  63 03 65 64 75 00 00 ff  00 01 00 00 29 20 00 00  |c.edu.......) ..|
00000020  00 80 00 00 00                                    |.....|

2026-10-09 23:38:5345.198.224.251to 53/udpDNSUS

DNS query ANY wisc.edu

payload bytes

00000000  12 71 01 00 00 01 00 00  00 00 00 01 04 77 69 73  |.q...........wis|
00000010  63 03 65 64 75 00 00 ff  00 01 00 00 29 20 00 00  |c.edu.......) ..|
00000020  00 80 00 00 00                                    |.....|

2026-10-09 20:04:45151.243.11.230to 53/udpDNSAE

DNS query ANY wisc.edu

payload bytes

00000000  12 71 01 00 00 01 00 00  00 00 00 01 04 77 69 73  |.q...........wis|
00000010  63 03 65 64 75 00 00 ff  00 01 00 00 29 20 00 00  |c.edu.......) ..|
00000020  00 80 00 00 00                                    |.....|

2026-10-09 19:56:38151.243.11.230to 53/udpDNSAE

DNS query ANY wisc.edu

payload bytes

00000000  12 71 01 00 00 01 00 00  00 00 00 01 04 77 69 73  |.q...........wis|
00000010  63 03 65 64 75 00 00 ff  00 01 00 00 29 20 00 00  |c.edu.......) ..|
00000020  00 80 00 00 00                                    |.....|

2026-10-09 19:50:23151.243.11.230to 53/udpDNSAE

DNS query ANY wisc.edu

payload bytes

00000000  12 71 01 00 00 01 00 00  00 00 00 01 04 77 69 73  |.q...........wis|
00000010  63 03 65 64 75 00 00 ff  00 01 00 00 29 20 00 00  |c.edu.......) ..|
00000020  00 80 00 00 00                                    |.....|

2026-10-09 19:14:39151.243.11.230to 53/udpDNSAE

DNS query ANY wisc.edu

payload bytes

00000000  12 71 01 00 00 01 00 00  00 00 00 01 04 77 69 73  |.q...........wis|
00000010  63 03 65 64 75 00 00 ff  00 01 00 00 29 20 00 00  |c.edu.......) ..|
00000020  00 80 00 00 00                                    |.....|

2026-10-09 16:53:2245.205.1.231to 53/udpDNSBR

DNS query ANY wisc.edu

payload bytes

00000000  12 71 01 00 00 01 00 00  00 00 00 01 04 77 69 73  |.q...........wis|
00000010  63 03 65 64 75 00 00 ff  00 01 00 00 29 20 00 00  |c.edu.......) ..|
00000020  00 80 00 00 00                                    |.....|

2026-10-09 16:19:0745.205.1.231to 53/udpDNSBR

DNS query ANY wisc.edu

payload bytes

00000000  12 71 01 00 00 01 00 00  00 00 00 01 04 77 69 73  |.q...........wis|
00000010  63 03 65 64 75 00 00 ff  00 01 00 00 29 20 00 00  |c.edu.......) ..|
00000020  00 80 00 00 00                                    |.....|