HoneyLabs

UDP traffic

Datagrams matching country:BG 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.

14

Datagrams

2

Source addresses

2

Networks

1

Countries

5

Destination ports

Traffic by type

Service queries

13 datagrams from 2 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 Sun RPC datagram, to 111/udp

·

payload bytes
00000000  1a a9 ff e1 00 00 00 00  00 00 00 02 00 01 86 a0  |................|
00000010  00 00 00 02 00 00 00 04  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00                           |........|

Unrecognised

1 datagrams from 1 source

Datagrams no decoder recognised. Their first bytes are kept.

Latest Unrecognised datagram, to 500/udp

·J·}S;·d ·0·$·<·G@)·F·

payload bytes
00000000  d7 15 cc 4a 91 7d 53 3b  00 00 00 00 00 00 00 00  |...J.}S;........|
00000010  01 10 02 00 00 00 00 00  00 00 00 64 0d 00 00 30  |...........d...0|
00000020  00 00 00 01 00 00 00 01  00 00 00 24 01 01 00 01  |...........$....|
00000030  00 00 00 1c 01 01 00 00  80 01 00 07 80 0e 01 00  |................|
00000040  80 02 00 02 80 03 00 03  80 04 00 02 00 00 00 18  |................|
00000050  3c f1 87 b2 47 40 29 ea  46 ac 7f d0 ea f2 89 f5  |<...G@).F.......|
00000060  00 00 00 04                                       |....|

Amplification checks

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

ServicePortDatagramsSourcesFactor
Portmap111/udp417 to 28
SNMPv2161/udp416.3
SSDP1900/udp4130.8

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)
193.47.62.187AS216014 BestDC LimitedBGSun RPC122026-10-10 22:38
93.123.109.214AS48090 Techoff Srv LimitedBGCoAP22026-10-10 18:23

Latest datagrams