UDP traffic

Datagrams matching proto:ssdp 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

397

Datagrams

143

Source addresses

Networks

Countries

Destination ports

Traffic by type

Service queries

397 datagrams from 143 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.

SSDP 397

Latest SSDP datagram, to 1900/udp

M-SEARCH * HTTP/1.1 Host:239.255.255.250:1900 ST:ssdp:all Man:"ssdp:discover" MX:3

payload bytes

00000000  4d 2d 53 45 41 52 43 48  20 2a 20 48 54 54 50 2f  |M-SEARCH * HTTP/|
00000010  31 2e 31 0d 0a 48 6f 73  74 3a 32 33 39 2e 32 35  |1.1..Host:239.25|
00000020  35 2e 32 35 35 2e 32 35  30 3a 31 39 30 30 0d 0a  |5.255.250:1900..|
00000030  53 54 3a 73 73 64 70 3a  61 6c 6c 0d 0a 4d 61 6e  |ST:ssdp:all..Man|
00000040  3a 22 73 73 64 70 3a 64  69 73 63 6f 76 65 72 22  |:"ssdp:discover"|
00000050  0d 0a 4d 58 3a 33 0d 0a  0d 0a                    |..MX:3....|

Amplification checks

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

Service	Port	Datagrams	Sources	Factor
SSDP	1900/udp +3	397	143	30.8

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

1900/udp SSDP350
32414/udp SSDP8
32410/udp SSDP7
1898/udp SSDP4
1902/udp SSDP4
2900/udp SSDP4
11900/udp SSDP3
6867/udp SSDP2
21900/udp SSDP2
824/udp SSDP1
3690/udp SSDP1
4127/udp SSDP1

Networks

AS403005 Blatant from 1 source69
AS215925 Vpsvault.host Ltd from 2 sources59
AS396982 Google LLC from 52 sources54
AS209630 LLC Vash Kredit Bank from 1 source40
AS20052 Arbor Networks, Inc. from 14 sources30
AS6939 Hurricane Electric LLC from 19 sources19
AS209588 Flyservers S.A. from 1 source19
AS398324 Censys, Inc. from 5 sources15
AS8075 Microsoft Corporation from 12 sources12
AS51115 HLL LLC from 1 source12

Countries

Source addresses (unverified)

Address	Network	Cc	Sends	Datagrams	Last seen (UTC)
31.56.19.21	AS403005 Blatant	AE	SSDP	69	2026-10-05 15:49
151.243.11.230	AS209630 LLC Vash Kredit Bank	AE	SSDP	40	2026-10-10 19:09
45.198.224.251	AS215925 Vpsvault.host Ltd	US	SSDP	32	2026-10-10 12:02
45.205.1.231	AS215925 Vpsvault.host Ltd	BR	SSDP	27	2026-10-10 22:05
141.98.83.48	AS209588 Flyservers S.A.	PA	SSDP	19	2026-10-11 03:36
185.94.111.1	AS51115 HLL LLC	RU	SSDP	12	2026-10-11 02:25
66.132.172.243	AS398324 Censys, Inc.	US	SSDP	11	2026-10-10 22:51
16.5.0.234	AS401661 EMBNEX, LLC	BR	SSDP	8	2026-10-05 20:44
146.88.241.100	AS20052 Arbor Networks, Inc.	US	SSDP	5	2026-10-10 01:25
147.203.255.20	AS11320 LightEdge Solutions	US	SSDP	4	2026-10-07 06:26
147.182.218.22	AS14061 DigitalOcean, LLC	US	SSDP	4	2026-10-07 22:16
52.73.169.169	AS14618 Amazon.com, Inc.	US	SSDP	4	2026-10-08 07:04
193.47.62.187	AS216014 BestDC Limited	BG	SSDP	4	2026-10-10 22:38
172.105.13.33	AS63949 Akamai Connected Cloud	CA	SSDP	4	2026-10-07 18:59
146.88.241.50	AS20052 Arbor Networks, Inc.	US	SSDP	4	2026-10-08 09:57
176.65.149.208	AS51396 Pfcloud UG (haftungsbeschrankt)	NL	SSDP	3	2026-10-07 09:06
146.88.241.170	AS20052 Arbor Networks, Inc.	US	SSDP	3	2026-10-10 06:06
146.88.241.150	AS20052 Arbor Networks, Inc.	US	SSDP	2	2026-10-10 11:16
193.163.125.162	AS211298 Driftnet Ltd	GB	SSDP	2	2026-10-08 23:05
198.235.24.129	AS396982 Google LLC	US	SSDP	2	2026-10-09 16:43

Latest datagrams

2026-10-11 03:36:14141.98.83.48to 1900/udpSSDPPA

M-SEARCH * HTTP/1.1 Host:239.255.255.250:1900 ST:ssdp:all Man:"ssdp:discover" MX:3

payload bytes

00000000  4d 2d 53 45 41 52 43 48  20 2a 20 48 54 54 50 2f  |M-SEARCH * HTTP/|
00000010  31 2e 31 0d 0a 48 6f 73  74 3a 32 33 39 2e 32 35  |1.1..Host:239.25|
00000020  35 2e 32 35 35 2e 32 35  30 3a 31 39 30 30 0d 0a  |5.255.250:1900..|
00000030  53 54 3a 73 73 64 70 3a  61 6c 6c 0d 0a 4d 61 6e  |ST:ssdp:all..Man|
00000040  3a 22 73 73 64 70 3a 64  69 73 63 6f 76 65 72 22  |:"ssdp:discover"|
00000050  0d 0a 4d 58 3a 33 0d 0a  0d 0a                    |..MX:3....|

2026-10-11 03:21:41141.98.83.48to 1900/udpSSDPPA

M-SEARCH * HTTP/1.1 Host:239.255.255.250:1900 ST:ssdp:all Man:"ssdp:discover" MX:3

payload bytes

00000000  4d 2d 53 45 41 52 43 48  20 2a 20 48 54 54 50 2f  |M-SEARCH * HTTP/|
00000010  31 2e 31 0d 0a 48 6f 73  74 3a 32 33 39 2e 32 35  |1.1..Host:239.25|
00000020  35 2e 32 35 35 2e 32 35  30 3a 31 39 30 30 0d 0a  |5.255.250:1900..|
00000030  53 54 3a 73 73 64 70 3a  61 6c 6c 0d 0a 4d 61 6e  |ST:ssdp:all..Man|
00000040  3a 22 73 73 64 70 3a 64  69 73 63 6f 76 65 72 22  |:"ssdp:discover"|
00000050  0d 0a 4d 58 3a 33 0d 0a  0d 0a                    |..MX:3....|

2026-10-11 03:13:48146.88.241.110to 32410/udpSSDPUS

M-SEARCH * HTTP/1.1

payload bytes

00000000  4d 2d 53 45 41 52 43 48  20 2a 20 48 54 54 50 2f  |M-SEARCH * HTTP/|
00000010  31 2e 31 0d 0a                                    |1.1..|

2026-10-11 03:12:12141.98.83.48to 1900/udpSSDPPA

M-SEARCH * HTTP/1.1 Host:239.255.255.250:1900 ST:ssdp:all Man:"ssdp:discover" MX:3

payload bytes

00000000  4d 2d 53 45 41 52 43 48  20 2a 20 48 54 54 50 2f  |M-SEARCH * HTTP/|
00000010  31 2e 31 0d 0a 48 6f 73  74 3a 32 33 39 2e 32 35  |1.1..Host:239.25|
00000020  35 2e 32 35 35 2e 32 35  30 3a 31 39 30 30 0d 0a  |5.255.250:1900..|
00000030  53 54 3a 73 73 64 70 3a  61 6c 6c 0d 0a 4d 61 6e  |ST:ssdp:all..Man|
00000040  3a 22 73 73 64 70 3a 64  69 73 63 6f 76 65 72 22  |:"ssdp:discover"|
00000050  0d 0a 4d 58 3a 33 0d 0a  0d 0a                    |..MX:3....|

2026-10-11 03:11:38146.88.241.110to 32410/udpSSDPUS

M-SEARCH * HTTP/1.1

payload bytes

00000000  4d 2d 53 45 41 52 43 48  20 2a 20 48 54 54 50 2f  |M-SEARCH * HTTP/|
00000010  31 2e 31 0d 0a                                    |1.1..|

2026-10-11 02:55:3564.62.197.80to 1900/udpSSDPUS

M-SEARCH * HTTP/1.1 Host:239.255.255.250:1900 ST:upnp:rootdevice Man:"ssdp:discover" MX:3

payload bytes

00000000  4d 2d 53 45 41 52 43 48  20 2a 20 48 54 54 50 2f  |M-SEARCH * HTTP/|
00000010  31 2e 31 0d 0a 48 6f 73  74 3a 32 33 39 2e 32 35  |1.1..Host:239.25|
00000020  35 2e 32 35 35 2e 32 35  30 3a 31 39 30 30 0d 0a  |5.255.250:1900..|
00000030  53 54 3a 75 70 6e 70 3a  72 6f 6f 74 64 65 76 69  |ST:upnp:rootdevi|
00000040  63 65 0d 0a 4d 61 6e 3a  22 73 73 64 70 3a 64 69  |ce..Man:"ssdp:di|
00000050  73 63 6f 76 65 72 22 0d  0a 4d 58 3a 33 0d 0a 0d  |scover"..MX:3...|
00000060  0a                                                |.|

2026-10-11 02:25:49185.94.111.1to 1900/udpSSDPRU

M-SEARCH * HTTP/1.1 Host: 239.255.255.250:1900 Man: "ssdp:discover" MX: 3 ST: ssdp:all

payload bytes

00000000  4d 2d 53 45 41 52 43 48  20 2a 20 48 54 54 50 2f  |M-SEARCH * HTTP/|
00000010  31 2e 31 0d 0a 48 6f 73  74 3a 20 32 33 39 2e 32  |1.1..Host: 239.2|
00000020  35 35 2e 32 35 35 2e 32  35 30 3a 31 39 30 30 0d  |55.255.250:1900.|
00000030  0a 4d 61 6e 3a 20 22 73  73 64 70 3a 64 69 73 63  |.Man: "ssdp:disc|
00000040  6f 76 65 72 22 0d 0a 4d  58 3a 20 33 0d 0a 53 54  |over"..MX: 3..ST|
00000050  3a 20 73 73 64 70 3a 61  6c 6c 0d 0a 0d 0a        |: ssdp:all....|

2026-10-11 02:18:51185.94.111.1to 1900/udpSSDPRU

M-SEARCH * HTTP/1.1 Host: 239.255.255.250:1900 Man: "ssdp:discover" MX: 3 ST: ssdp:all

payload bytes

00000000  4d 2d 53 45 41 52 43 48  20 2a 20 48 54 54 50 2f  |M-SEARCH * HTTP/|
00000010  31 2e 31 0d 0a 48 6f 73  74 3a 20 32 33 39 2e 32  |1.1..Host: 239.2|
00000020  35 35 2e 32 35 35 2e 32  35 30 3a 31 39 30 30 0d  |55.255.250:1900.|
00000030  0a 4d 61 6e 3a 20 22 73  73 64 70 3a 64 69 73 63  |.Man: "ssdp:disc|
00000040  6f 76 65 72 22 0d 0a 4d  58 3a 20 33 0d 0a 53 54  |over"..MX: 3..ST|
00000050  3a 20 73 73 64 70 3a 61  6c 6c 0d 0a 0d 0a        |: ssdp:all....|

2026-10-11 01:43:27146.88.241.90to 32410/udpSSDPUS

M-SEARCH * HTTP/1.1

payload bytes

00000000  4d 2d 53 45 41 52 43 48  20 2a 20 48 54 54 50 2f  |M-SEARCH * HTTP/|
00000010  31 2e 31 0d 0a                                    |1.1..|

2026-10-11 01:07:07185.94.111.1to 1900/udpSSDPRU

M-SEARCH * HTTP/1.1 Host: 239.255.255.250:1900 Man: "ssdp:discover" MX: 3 ST: ssdp:all

payload bytes

00000000  4d 2d 53 45 41 52 43 48  20 2a 20 48 54 54 50 2f  |M-SEARCH * HTTP/|
00000010  31 2e 31 0d 0a 48 6f 73  74 3a 20 32 33 39 2e 32  |1.1..Host: 239.2|
00000020  35 35 2e 32 35 35 2e 32  35 30 3a 31 39 30 30 0d  |55.255.250:1900.|
00000030  0a 4d 61 6e 3a 20 22 73  73 64 70 3a 64 69 73 63  |.Man: "ssdp:disc|
00000040  6f 76 65 72 22 0d 0a 4d  58 3a 20 33 0d 0a 53 54  |over"..MX: 3..ST|
00000050  3a 20 73 73 64 70 3a 61  6c 6c 0d 0a 0d 0a        |: ssdp:all....|

2026-10-11 01:02:08185.94.111.1to 1900/udpSSDPRU

M-SEARCH * HTTP/1.1 Host: 239.255.255.250:1900 Man: "ssdp:discover" MX: 3 ST: ssdp:all

payload bytes

00000000  4d 2d 53 45 41 52 43 48  20 2a 20 48 54 54 50 2f  |M-SEARCH * HTTP/|
00000010  31 2e 31 0d 0a 48 6f 73  74 3a 20 32 33 39 2e 32  |1.1..Host: 239.2|
00000020  35 35 2e 32 35 35 2e 32  35 30 3a 31 39 30 30 0d  |55.255.250:1900.|
00000030  0a 4d 61 6e 3a 20 22 73  73 64 70 3a 64 69 73 63  |.Man: "ssdp:disc|
00000040  6f 76 65 72 22 0d 0a 4d  58 3a 20 33 0d 0a 53 54  |over"..MX: 3..ST|
00000050  3a 20 73 73 64 70 3a 61  6c 6c 0d 0a 0d 0a        |: ssdp:all....|

2026-10-11 00:10:42147.185.132.76to 1900/udpSSDPUS

M-SEARCH * HTTP/1.1 Host:239.255.255.250:1900 ST:upnp:rootdevice Man:"ssdp:discover" MX:3

payload bytes

00000000  4d 2d 53 45 41 52 43 48  20 2a 20 48 54 54 50 2f  |M-SEARCH * HTTP/|
00000010  31 2e 31 0d 0a 48 6f 73  74 3a 32 33 39 2e 32 35  |1.1..Host:239.25|
00000020  35 2e 32 35 35 2e 32 35  30 3a 31 39 30 30 0d 0a  |5.255.250:1900..|
00000030  53 54 3a 75 70 6e 70 3a  72 6f 6f 74 64 65 76 69  |ST:upnp:rootdevi|
00000040  63 65 0d 0a 4d 61 6e 3a  22 73 73 64 70 3a 64 69  |ce..Man:"ssdp:di|
00000050  73 63 6f 76 65 72 22 0d  0a 4d 58 3a 33 0d 0a 0d  |scover"..MX:3...|
00000060  0a                                                |.|

2026-10-10 22:51:3166.132.172.243to 56032/udpSSDPUS

M-SEARCH * HTTP/1.1 HOST:239.255.255.250:1900 ST:ssdp:all MAN:"ssdp:discover"

payload bytes

00000000  4d 2d 53 45 41 52 43 48  20 2a 20 48 54 54 50 2f  |M-SEARCH * HTTP/|
00000010  31 2e 31 0d 0a 48 4f 53  54 3a 32 33 39 2e 32 35  |1.1..HOST:239.25|
00000020  35 2e 32 35 35 2e 32 35  30 3a 31 39 30 30 0d 0a  |5.255.250:1900..|
00000030  53 54 3a 73 73 64 70 3a  61 6c 6c 0d 0a 4d 41 4e  |ST:ssdp:all..MAN|
00000040  3a 22 73 73 64 70 3a 64  69 73 63 6f 76 65 72 22  |:"ssdp:discover"|
00000050  0d 0a 0d 0a                                       |....|

2026-10-10 22:40:3720.40.214.173to 1900/udpSSDPUS

M-SEARCH * HTTP/1.1 Host:239.255.255.250:1900 ST:upnp:rootdevice Man:"ssdp:discover" MX:3

payload bytes

00000000  4d 2d 53 45 41 52 43 48  20 2a 20 48 54 54 50 2f  |M-SEARCH * HTTP/|
00000010  31 2e 31 0d 0a 48 6f 73  74 3a 32 33 39 2e 32 35  |1.1..Host:239.25|
00000020  35 2e 32 35 35 2e 32 35  30 3a 31 39 30 30 0d 0a  |5.255.250:1900..|
00000030  53 54 3a 75 70 6e 70 3a  72 6f 6f 74 64 65 76 69  |ST:upnp:rootdevi|
00000040  63 65 0d 0a 4d 61 6e 3a  22 73 73 64 70 3a 64 69  |ce..Man:"ssdp:di|
00000050  73 63 6f 76 65 72 22 0d  0a 4d 58 3a 33 0d 0a 0d  |scover"..MX:3...|
00000060  0a 0d 0a                                          |...|

2026-10-10 22:40:0320.29.53.174to 1900/udpSSDPUS

M-SEARCH * HTTP/1.1 Host:239.255.255.250:1900 ST:upnp:rootdevice Man:"ssdp:discover" MX:3

payload bytes

00000000  4d 2d 53 45 41 52 43 48  20 2a 20 48 54 54 50 2f  |M-SEARCH * HTTP/|
00000010  31 2e 31 0d 0a 48 6f 73  74 3a 32 33 39 2e 32 35  |1.1..Host:239.25|
00000020  35 2e 32 35 35 2e 32 35  30 3a 31 39 30 30 0d 0a  |5.255.250:1900..|
00000030  53 54 3a 75 70 6e 70 3a  72 6f 6f 74 64 65 76 69  |ST:upnp:rootdevi|
00000040  63 65 0d 0a 4d 61 6e 3a  22 73 73 64 70 3a 64 69  |ce..Man:"ssdp:di|
00000050  73 63 6f 76 65 72 22 0d  0a 4d 58 3a 33 0d 0a 0d  |scover"..MX:3...|
00000060  0a 0d 0a                                          |...|