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UDP traffic

Datagrams matching port:389 sent to HoneyLabs sensors over UDP in the last 24 hours. 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

27

Datagrams

14

Source addresses

9

Networks

5

Countries

1

Destination ports

Traffic by type

Service queries

11 datagrams from 10 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 11

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

16 datagrams from 4 sources

Datagrams no decoder recognised. Their first bytes are kept.

Unrecognised 16

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/udp271456 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)
151.243.11.230AS209630 LLC Vash Kredit BankAEUnrecognised82026-10-10 21:08
141.98.11.129AS209605 UAB Host BalticLTUnrecognised42026-10-11 03:43
45.135.193.115AS51396 Pfcloud UG (haftungsbeschrankt)DEUnrecognised32026-10-10 16:54
146.88.241.70AS20052 Arbor Networks, Inc.USCLDAP22026-10-11 07:57
64.62.156.26AS6939 Hurricane Electric LLCUSCLDAP12026-10-11 07:45
65.49.20.74AS6939 Hurricane Electric LLCUSCLDAP12026-10-11 05:53
91.230.168.222AS213412 ONYPHE SASUSCLDAP12026-10-10 16:35
66.132.186.249AS398324 Censys, Inc.USCLDAP12026-10-10 12:05
91.230.168.216AS213412 ONYPHE SASUSCLDAP12026-10-10 13:45
91.231.89.88AS213412 ONYPHE SASFRCLDAP12026-10-10 14:00
45.198.224.251AS215925 Vpsvault.host LtdUSUnrecognised12026-10-11 08:08
71.6.135.131AS10439 CariNet, Inc.USCLDAP12026-10-10 17:59
64.62.156.120AS6939 Hurricane Electric LLCUSCLDAP12026-10-11 06:06
65.49.20.102AS6939 Hurricane Electric LLCUSCLDAP12026-10-11 05:50

Latest datagrams