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UDP traffic

Datagrams matching port:161 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

1.0K

Datagrams

278

Source addresses

67

Networks

21

Countries

1

Destination ports

Traffic by type

Service queries

995 datagrams from 252 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.

SNMP 995

Latest SNMP datagram, to 161/udp

0$·public·X·d0 0·+·

payload bytes
00000000  30 24 02 01 01 04 06 70  75 62 6c 69 63 a5 17 02  |0$.....public...|
00000010  04 1f af 58 8b 02 01 00  02 01 64 30 09 30 07 06  |...X......d0.0..|
00000020  03 2b 06 01 05 00                                 |.+....|

Unrecognised

37 datagrams from 32 sources

Datagrams no decoder recognised. Their first bytes are kept.

Unrecognised 37

Latest Unrecognised datagram, to 161/udp

0·public·0·0· +·0· +·0· +·0· +·0· +·0· +·0· +·0· +·0· +· ·0· +· ·0· +·0· +·0· +· ·0· +·0· +·0· +·

payload bytes
00000000  30 82 02 9d 02 01 01 04  06 70 75 62 6c 69 63 a0  |0........public.|
00000010  82 02 8e 02 02 04 d2 02  01 00 02 01 00 30 82 02  |.............0..|
00000020  80 30 0e 06 0a 2b 06 01  02 01 02 02 01 02 01 05  |.0...+..........|
00000030  00 30 0e 06 0a 2b 06 01  02 01 02 02 01 02 02 05  |.0...+..........|
00000040  00 30 0e 06 0a 2b 06 01  02 01 02 02 01 02 03 05  |.0...+..........|
00000050  00 30 0e 06 0a 2b 06 01  02 01 02 02 01 02 04 05  |.0...+..........|
00000060  00 30 0e 06 0a 2b 06 01  02 01 02 02 01 02 05 05  |.0...+..........|
00000070  00 30 0e 06 0a 2b 06 01  02 01 02 02 01 02 06 05  |.0...+..........|
00000080  00 30 0e 06 0a 2b 06 01  02 01 02 02 01 02 07 05  |.0...+..........|
00000090  00 30 0e 06 0a 2b 06 01  02 01 02 02 01 02 08 05  |.0...+..........|
000000a0  00 30 0e 06 0a 2b 06 01  02 01 02 02 01 02 09 05  |.0...+..........|
000000b0  00 30 0e 06 0a 2b 06 01  02 01 02 02 01 02 0a 05  |.0...+..........|
000000c0  00 30 0e 06 0a 2b 06 01  02 01 02 02 01 02 0b 05  |.0...+..........|
000000d0  00 30 0e 06 0a 2b 06 01  02 01 02 02 01 02 0c 05  |.0...+..........|
000000e0  00 30 0e 06 0a 2b 06 01  02 01 02 02 01 02 0d 05  |.0...+..........|
000000f0  00 30 0e 06 0a 2b 06 01  02 01 02 02 01 02 0e 05  |.0...+..........|

Amplification checks

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

ServicePortDatagramsSourcesFactor
SNMPv2161/udp1,0322786.3

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)
45.198.224.251AS215925 Vpsvault.host LtdUSSNMP542026-10-11 03:28
151.243.11.230AS209630 LLC Vash Kredit BankAESNMP512026-10-11 02:38
45.205.1.231AS215925 Vpsvault.host LtdBRSNMP482026-10-11 09:03
95.60.233.244AS12430 Vodafone SpainESSNMP362026-10-09 16:11
38.41.27.154AS269832 MDS TELECOM C.A.VESNMP322026-10-07 04:02
187.75.226.144AS27699 TELEFONICA BRASIL S.ABRSNMP302026-10-09 21:23
208.181.90.27AS852 TELUS Communications Inc.CASNMP302026-10-09 03:15
68.187.186.160AS20115 Charter Communications LLCUSSNMP302026-10-06 19:15
45.239.157.165AS268359 SPEED FIBER CONNECTION LTDA MEBRSNMP242026-10-09 17:55
179.104.42.192AS53006 ALGAR TELECOM S/ABRSNMP242026-10-09 12:02
141.98.83.48AS209588 Flyservers S.A.PASNMP242026-10-11 07:41
216.46.173.36AS13649 Flexential Colorado Corp.USSNMP202026-10-11 03:42
94.154.43.163AS219502 Storm Industries LLCNLSNMP202026-10-10 15:26
200.206.172.239AS27699 TELEFONICA BRASIL S.ABRSNMP192026-10-08 12:37
187.94.73.111AS53077 ALOLTECH TELECOM LTDABRSNMP182026-10-09 18:56
177.128.225.50AS262379 HZ TELECOM LTDABRSNMP182026-10-09 12:32
62.210.142.61AS12876 Scaleway SASFRSNMP172026-10-08 17:39
216.180.246.179AS396982 Google LLCUSSNMP172026-10-08 12:47
216.180.246.155AS396982 Google LLCUSSNMP172026-10-08 12:00
16.5.0.234AS401661 EMBNEX, LLCBRSNMP142026-10-05 20:17

Latest datagrams