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UDP traffic

Datagrams matching port:389 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

192

Datagrams

68

Source addresses

21

Networks

13

Countries

1

Destination ports

Traffic by type

Service queries

74 datagrams from 61 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.

CLDAP 74

Latest CLDAP datagram, to 389/udp

0·-·c·$· · ·objectclass0·

payload bytes
00000000  30 84 00 00 00 2d 02 01  01 63 84 00 00 00 24 04  |0....-...c....$.|
00000010  00 0a 01 00 0a 01 00 02  01 00 02 01 00 01 01 00  |................|
00000020  87 0b 6f 62 6a 65 63 74  63 6c 61 73 73 30 84 00  |..objectclass0..|
00000030  00 00 00 00 0a                                    |.....|

Unrecognised

118 datagrams from 7 sources

Datagrams no decoder recognised. Their first bytes are kept.

Unrecognised 118

Latest Unrecognised datagram, to 389/udp

0%·c · · ·objectclass0·

payload bytes
00000000  30 25 02 01 01 63 20 04  00 0a 01 00 0a 01 00 02  |0%...c .........|
00000010  01 00 02 01 00 01 01 00  87 0b 6f 62 6a 65 63 74  |..........object|
00000020  63 6c 61 73 73 30 00                              |class0.|

Amplification checks

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

ServicePortDatagramsSourcesFactor
CLDAP389/udp1926856 to 70

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

Countries

Source addresses (unverified)

AddressNetworkCcSendsDatagramsLast seen (UTC)
45.135.193.115AS51396 Pfcloud UG (haftungsbeschrankt)DEUnrecognised252026-10-10 16:54
141.98.11.129AS209605 UAB Host BalticLTUnrecognised232026-10-11 03:43
45.205.1.231AS215925 Vpsvault.host LtdBRUnrecognised232026-10-09 05:24
151.243.11.230AS209630 LLC Vash Kredit BankAEUnrecognised202026-10-10 21:08
45.198.224.251AS215925 Vpsvault.host LtdUSUnrecognised162026-10-09 08:47
185.94.111.1AS51115 HLL LLCRUUnrecognised72026-10-09 04:40
172.105.22.202AS63949 Akamai Connected CloudCACLDAP42026-10-08 17:56
94.154.43.34AS219502 Storm Industries LLCNLUnrecognised42026-10-08 00:52
147.203.255.20AS11320 LightEdge SolutionsUSCLDAP42026-10-08 09:34
91.230.168.222AS213412 ONYPHE SASUSCLDAP22026-10-10 16:35
146.88.241.70AS20052 Arbor Networks, Inc.USCLDAP22026-10-11 07:57
146.88.241.80AS20052 Arbor Networks, Inc.USCLDAP22026-10-07 16:02
206.189.14.75AS14061 DigitalOcean, LLCNLCLDAP22026-10-07 00:19
137.184.210.250AS14061 DigitalOcean, LLCUSCLDAP22026-10-05 13:49
157.230.83.56AS14061 DigitalOcean, LLCUSCLDAP22026-10-09 17:23
185.191.236.38AS264617 GRUPO PANAGLOBAL 15 S.ACHCLDAP22026-10-06 16:30
91.231.89.88AS213412 ONYPHE SASFRCLDAP12026-10-10 14:00
64.62.156.78AS6939 Hurricane Electric LLCUSCLDAP12026-10-08 04:09
109.105.210.62AS21859 Zenlayer IncPTCLDAP12026-10-09 08:12
64.62.156.31AS6939 Hurricane Electric LLCUSCLDAP12026-10-09 02:40

Latest datagrams