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UDP traffic

Datagrams matching proto:ldap 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

85

Datagrams

57

Source addresses

15

Networks

10

Countries

18

Destination ports

Traffic by type

Service queries

85 datagrams from 57 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 85

Latest CLDAP datagram, to 389/udp

0·-·c·$· · ·d·objectClass0·

payload bytes
00000000  30 84 00 00 00 2d 02 01  07 63 84 00 00 00 24 04  |0....-...c....$.|
00000010  00 0a 01 00 0a 01 00 02  01 00 02 01 64 01 01 00  |............d...|
00000020  87 0b 6f 62 6a 65 63 74  43 6c 61 73 73 30 84 00  |..objectClass0..|
00000030  00 00 00                                          |...|

Amplification checks

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

ServicePortDatagramsSourcesFactor
CLDAP389/udp +3855756 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)
66.132.172.248AS398324 Censys, Inc.USCLDAP172026-10-10 16:01
172.105.22.202AS63949 Akamai Connected CloudCACLDAP42026-10-08 17:56
147.203.255.20AS11320 LightEdge SolutionsUSCLDAP42026-10-08 09:34
91.230.168.222AS213412 ONYPHE SASUSCLDAP22026-10-10 16:35
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
185.191.236.38AS264617 GRUPO PANAGLOBAL 15 S.ACHCLDAP22026-10-06 16:30
157.230.83.56AS14061 DigitalOcean, LLCUSCLDAP22026-10-09 17:23
64.62.156.14AS6939 Hurricane Electric LLCUSCLDAP12026-10-07 06:29
64.62.156.78AS6939 Hurricane Electric LLCUSCLDAP12026-10-08 04:09
71.6.233.2AS10439 CariNet, Inc.USCLDAP12026-10-06 15:50
64.62.156.31AS6939 Hurricane Electric LLCUSCLDAP12026-10-09 02:40
184.105.139.86AS6939 Hurricane Electric LLCUSCLDAP12026-10-08 06:43
109.105.210.62AS21859 Zenlayer IncPTCLDAP12026-10-09 08:12
66.132.186.251AS398324 Censys, Inc.USCLDAP12026-10-08 12:28
64.62.197.30AS6939 Hurricane Electric LLCUSCLDAP12026-10-06 05:32
86.54.31.38AS12989 Black HOST LtdCACLDAP12026-10-09 13:35
64.62.197.25AS6939 Hurricane Electric LLCUSCLDAP12026-10-06 05:28
65.49.1.97AS6939 Hurricane Electric LLCUSCLDAP12026-10-10 08:04

Latest datagrams