UDP traffic
Datagrams matching port:22548 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.
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Datagrams
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Source addresses
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Networks
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Countries
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Destination ports
Traffic by type
Service queries
1 datagrams from 1 sourceRequests 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 SSDP datagram, to 22548/udp
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 |....|
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 | 22548/udp | 1 | 1 | 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.
Source addresses (unverified)
| Address | Network | Cc | Sends | Datagrams | Last seen (UTC) |
|---|---|---|---|---|---|
| 66.132.172.243 | AS398324 Censys, Inc. | US | SSDP | 1 | 2026-10-06 11:42 |
Latest datagrams
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 |....|