HoneyLabs

UDP traffic

Datagrams matching asn:131090 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.

3

Datagrams

3

Source addresses

1

Networks

1

Countries

3

Destination ports

Traffic by type

Service queries

1 datagrams from 1 source

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 137/udp

NetBIOS node status query *

payload bytes
00000000  00 06 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

2 datagrams from 2 sources

Datagrams no decoder recognised. Their first bytes are kept.

Latest Unrecognised datagram, to 24650/udp

·+·:R·-·4Vx"·#i·t·

payload bytes
00000000  01 2b ff 3a 52 f1 2d 96  c6 00 ff ff 00 fe fe fe  |.+.:R.-.........|
00000010  fe fd fd fd fd 12 34 56  78 22 95 23 69 e8 74 89  |......4Vx".#i.t.|
00000020  d6                                                |.|

Amplification checks

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

ServicePortDatagramsSourcesFactor
NetBIOS137/udp113.8

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)
116.58.234.163AS131090 National Telecom Public Company LimitedTHUnrecognised12026-10-05 17:14
159.192.96.152AS131090 National Telecom Public Company LimitedTHNetBIOS12026-10-10 05:02
110.77.250.110AS131090 National Telecom Public Company LimitedTHUnrecognised12026-10-05 13:19

Latest datagrams