HoneyLabs

UDP traffic

Datagrams matching asn:11320 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.

31

Datagrams

1

Source addresses

1

Networks

1

Countries

7

Destination ports

Traffic by type

Service queries

27 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 SNMP datagram, to 161/udp

0:·0·Ji·0·0·7·0·

payload bytes
00000000  30 3a 02 01 03 30 0f 02  02 4a 69 02 03 00 ff e3  |0:...0...Ji.....|
00000010  04 01 04 02 01 03 04 10  30 0e 04 00 02 01 00 02  |........0.......|
00000020  01 00 04 00 04 00 04 00  30 12 04 00 04 00 a0 0c  |........0.......|
00000030  02 02 37 f0 02 01 00 02  01 00 30 00              |..7.......0.|

Unrecognised

4 datagrams from 1 source

Datagrams no decoder recognised. Their first bytes are kept.

Latest Unrecognised datagram, to 11211/udp

ZM·stats

payload bytes
00000000  5a 4d 00 00 00 01 00 00  73 74 61 74 73 0d 0a     |ZM......stats..|

Amplification checks

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

ServicePortDatagramsSourcesFactor
SNMPv2161/udp916.3
Portmap111/udp417 to 28
DNS53/udp4128 to 54
CLDAP389/udp4156 to 70
SSDP1900/udp4130.8
Memcached11211/udp4110,000 to 51,000
NTP123/udp21556.9

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

DNS questions

DNS record types

Networks

Countries

Source addresses (unverified)

AddressNetworkCcSendsDatagramsLast seen (UTC)
147.203.255.20AS11320 LightEdge SolutionsUSCLDAP312026-10-11 05:48

Latest datagrams