UDP traffic

Datagrams matching ip:66.132.172.243 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

4 datagrams from 1 source

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 2 SSDP 2

Latest DNS datagram, to 33383/udp

· ·UUUU·U·<·

payload bytes

00000000  1a 09 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |............UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|

Unrecognised

9 datagrams from 1 source

Datagrams no decoder recognised. Their first bytes are kept.

Unrecognised 9

Latest Unrecognised datagram, to 30173/udp

·/·D·en·service:censys·DEFAULT·

payload bytes

00000000  02 01 00 00 2f 00 00 00  00 00 44 00 00 02 65 6e  |..../.....D...en|
00000010  00 00 00 0e 73 65 72 76  69 63 65 3a 63 65 6e 73  |....service:cens|
00000020  79 73 00 07 44 45 46 41  55 4c 54 00 00 00 00     |ys..DEFAULT....|

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	1629/udp +1	2	1	28 to 54
SSDP	51489/udp +1	2	1	30.8

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

AS398324 Censys, Inc. from 1 source13

Countries

US United States13

Source addresses (unverified)

Address	Network	Cc	Sends	Datagrams	Last seen (UTC)
66.132.172.243	AS398324 Censys, Inc.	US	Unrecognised	13	2026-10-06 15:51

Latest datagrams

2026-10-06 15:51:2566.132.172.243to 30173/udpUnrecognisedUS

·/·D·en·service:censys·DEFAULT·

payload bytes

00000000  02 01 00 00 2f 00 00 00  00 00 44 00 00 02 65 6e  |..../.....D...en|
00000010  00 00 00 0e 73 65 72 76  69 63 65 3a 63 65 6e 73  |....service:cens|
00000020  79 73 00 07 44 45 46 41  55 4c 54 00 00 00 00     |ys..DEFAULT....|

2026-10-06 14:45:3466.132.172.243to 32963/udpUnrecognisedUS

· ·UUUU·U·<·

payload bytes

00000000  1a 09 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |............UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|

2026-10-06 12:25:1466.132.172.243to 50096/udpUnrecognisedUS

payload bytes

00000000  01 08 00 14 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000010  00 00 00 00                                       |....|

2026-10-06 11:42:1066.132.172.243to 22548/udpSSDPUS

M-SEARCH * HTTP/1.1 HOST:239.255.255.250:1900 ST:ssdp:all MAN:"ssdp:discover"

payload bytes

00000000  4d 2d 53 45 41 52 43 48  20 2a 20 48 54 54 50 2f  |M-SEARCH * HTTP/|
00000010  31 2e 31 0d 0a 48 4f 53  54 3a 32 33 39 2e 32 35  |1.1..HOST:239.25|
00000020  35 2e 32 35 35 2e 32 35  30 3a 31 39 30 30 0d 0a  |5.255.250:1900..|
00000030  53 54 3a 73 73 64 70 3a  61 6c 6c 0d 0a 4d 41 4e  |ST:ssdp:all..MAN|
00000040  3a 22 73 73 64 70 3a 64  69 73 63 6f 76 65 72 22  |:"ssdp:discover"|
00000050  0d 0a 0d 0a                                       |....|

2026-10-06 10:40:4666.132.172.243to 19969/udpUnrecognisedUS

payload bytes

00000000  01 08 00 14 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000010  00 00 00 00                                       |....|

2026-10-06 10:22:1566.132.172.243to 51489/udpSSDPUS

M-SEARCH * HTTP/1.1 HOST:239.255.255.250:1900 ST:ssdp:all MAN:"ssdp:discover"

payload bytes

00000000  4d 2d 53 45 41 52 43 48  20 2a 20 48 54 54 50 2f  |M-SEARCH * HTTP/|
00000010  31 2e 31 0d 0a 48 4f 53  54 3a 32 33 39 2e 32 35  |1.1..HOST:239.25|
00000020  35 2e 32 35 35 2e 32 35  30 3a 31 39 30 30 0d 0a  |5.255.250:1900..|
00000030  53 54 3a 73 73 64 70 3a  61 6c 6c 0d 0a 4d 41 4e  |ST:ssdp:all..MAN|
00000040  3a 22 73 73 64 70 3a 64  69 73 63 6f 76 65 72 22  |:"ssdp:discover"|
00000050  0d 0a 0d 0a                                       |....|

2026-10-06 09:12:5866.132.172.243to 2054/udpUnrecognisedUS

·/·D·en·service:censys·DEFAULT·

payload bytes

00000000  02 01 00 00 2f 00 00 00  00 00 44 00 00 02 65 6e  |..../.....D...en|
00000010  00 00 00 0e 73 65 72 76  69 63 65 3a 63 65 6e 73  |....service:cens|
00000020  79 73 00 07 44 45 46 41  55 4c 54 00 00 00 00     |ys..DEFAULT....|

2026-10-06 07:18:0466.132.172.243to 65524/udpUnrecognisedUS

·/·D·en·service:censys·DEFAULT·

payload bytes

00000000  02 01 00 00 2f 00 00 00  00 00 44 00 00 02 65 6e  |..../.....D...en|
00000010  00 00 00 0e 73 65 72 76  69 63 65 3a 63 65 6e 73  |....service:cens|
00000020  79 73 00 07 44 45 46 41  55 4c 54 00 00 00 00     |ys..DEFAULT....|

2026-10-05 21:31:3366.132.172.243to 3790/udpUnrecognisedUS

payload bytes

00000000  01 08 00 14 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000010  00 00 00 00                                       |....|

2026-10-05 19:59:4766.132.172.243to 33383/udpDNSUS

· ·UUUU·U·<·

payload bytes

00000000  1a 09 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |............UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|

2026-10-05 14:02:0866.132.172.243to 35028/udpUnrecognisedUS

payload bytes

00000000  01 08 00 14 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000010  00 00 00 00                                       |....|

2026-10-05 13:59:5766.132.172.243to 39833/udpUnrecognisedUS

·/·D·en·service:censys·DEFAULT·

payload bytes

00000000  02 01 00 00 2f 00 00 00  00 00 44 00 00 02 65 6e  |..../.....D...en|
00000010  00 00 00 0e 73 65 72 76  69 63 65 3a 63 65 6e 73  |....service:cens|
00000020  79 73 00 07 44 45 46 41  55 4c 54 00 00 00 00     |ys..DEFAULT....|

2026-10-05 13:59:4266.132.172.243to 1629/udpDNSUS

· ·UUUU·U·<·

payload bytes

00000000  1a 09 fa ba 00 00 00 00  00 00 00 02 55 55 55 55  |............UUUU|
00000010  00 00 00 01 00 00 00 01  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  ff ff 55 12 00 00 00 3c  |..........U....<|
00000030  00 00 00 01 00 00 00 02  00 00 00 00 00 00 00 00  |................|