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UDP traffic

Datagrams matching port:5353 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

205

Datagrams

142

Source addresses

45

Networks

20

Countries

1

Destination ports

Traffic by type

Service queries

140 datagrams from 95 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 132 mDNS 8

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.....|

Other services

1 datagrams from 1 source

First packets of sessions with VPN, voice, tunnelling, database and management services.

OpenVPN 1

Latest OpenVPN datagram, to 5353/udp

\.% z·~#p</·~:qTC$HCF Q·k·gX,R5*wU$}SHn·wz·1kct·+8U4 `6ub·M·p·8gW]d+%R;·MIM8,·

payload bytes
00000000  5c 2e 25 20 7a 06 7e 23  70 3c 2f 0c 7e 3a 71 54  |\.% z.~#p</.~:qT|
00000010  43 24 48 43 46 09 51 0b  02 6b 02 67 58 2c 52 35  |C$HCF.Q..k.gX,R5|
00000020  2a 77 55 24 7d 53 48 6e  10 77 7a 0e 31 6b 63 74  |*wU$}SHn.wz.1kct|
00000030  0f 2b 38 55 34 09 60 36  75 62 1e 4d 0e 70 02 38  |.+8U4.`6ub.M.p.8|
00000040  67 57 5d 64 2b 25 52 3b  1c 4d 49 4d 38 2c c3 f4  |gW]d+%R;.MIM8,..|

Unrecognised

64 datagrams from 48 sources

Datagrams no decoder recognised. Their first bytes are kept.

Unrecognised 64

Latest Unrecognised datagram, to 5353/udp

i.·3·8?·C·.Hn8·1·%M'wi·

payload bytes
00000000  69 2e 1e 33 0c 38 3f 03  43 7f 2e 48 6e 38 11 31  |i..3.8?.C..Hn8.1|
00000010  1a 25 4d 27 77 69 08 98                           |.%M'wi..|

Amplification checks

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

ServicePortDatagramsSourcesFactor
mDNS5353/udp2051422 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
47.245.84.83AS45102 Alibaba (US) Technology Co., Ltd.SGDNS52026-10-10 05:06
47.84.179.21AS45102 Alibaba (US) Technology Co., Ltd.SGDNS52026-10-06 17:04
159.223.167.140AS14061 DigitalOcean, LLCUSmDNS42026-10-07 08:27
172.104.155.101AS63949 Akamai Connected CloudDEDNS32026-10-05 16:57
37.112.63.117AS57044 JSC ER-Telecom HoldingRUUnrecognised32026-10-08 07:22
62.210.89.150AS12876 Scaleway SASFRUnrecognised32026-10-10 01:21
159.203.67.164AS14061 DigitalOcean, LLCUSUnrecognised32026-10-08 03:12
16.5.0.234AS401661 EMBNEX, LLCBRDNS32026-10-05 17:01
216.226.76.20AS50219 Valence Technology Co.USDNS22026-10-07 16:21
159.203.120.106AS14061 DigitalOcean, LLCUSUnrecognised22026-10-09 21:46
194.164.107.4AS50219 Valence Technology Co.USDNS22026-10-05 13:22
216.226.76.30AS50219 Valence Technology Co.USDNS22026-10-07 20:35
203.55.131.5AS32475 Internap Holding LLCUSDNS22026-10-07 01:23
146.88.241.100AS20052 Arbor Networks, Inc.USDNS22026-10-08 05:48
146.88.241.70AS20052 Arbor Networks, Inc.USDNS22026-10-11 02:25
91.230.168.118AS213412 ONYPHE SASUSUnrecognised22026-10-09 22:53
216.226.77.30AS50219 Valence Technology Co.USDNS22026-10-10 13:14
216.226.78.20AS50219 Valence Technology Co.USDNS22026-10-09 14:12
195.24.207.184AS15964 CAMTELCMUnrecognised22026-10-06 04:23

Latest datagrams