HoneyLabs

UDP traffic

Datagrams matching asn:264617 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.

21

Datagrams

3

Source addresses

1

Networks

2

Countries

6

Destination ports

Traffic by type

Service queries

15 datagrams from 3 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.

Latest NetBIOS datagram, to 139/udp

NetBIOS node status query *

payload bytes
00000000  e5 d8 00 00 00 01 00 00  00 00 00 00 20 43 4b 41  |............ CKA|
00000010  41 41 41 41 41 41 41 41  41 41 41 41 41 41 41 41  |AAAAAAAAAAAAAAAA|
00000020  41 41 41 41 41 41 41 41  41 41 41 41 41 00 00 21  |AAAAAAAAAAAAA..!|
00000030  00 01                                             |..|

Unrecognised

6 datagrams from 3 sources

Datagrams no decoder recognised. Their first bytes are kept.

Latest Unrecognised datagram, to 3702/udp

<:/>

payload bytes
00000000  3c 3a 2f 3e 0a                                    |<:/>.|

Amplification checks

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

ServicePortDatagramsSourcesFactor
NetBIOS139/udp +1633.8
NTP123/udp42556.9
WS-Discovery3702/udp4210 to 500
CLDAP389/udp3256 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)
185.191.236.38AS264617 GRUPO PANAGLOBAL 15 S.ACHUnrecognised92026-10-06 16:30
170.231.236.98AS264617 GRUPO PANAGLOBAL 15 S.APANetBIOS62026-10-06 16:15
170.231.237.214AS264617 GRUPO PANAGLOBAL 15 S.APASOAP62026-10-06 16:03

Latest datagrams