UDP traffic
Datagrams matching qname:"probe.cacheperiscope.me" 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.
4
Datagrams
1
Source addresses
1
Networks
1
Countries
1
Destination ports
Traffic by type
Service queries
4 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 DNS datagram, to 53/udp
payload bytes
00000000 df 66 01 00 00 01 00 00 00 00 00 00 05 70 72 6f |.f...........pro| 00000010 62 65 0e 63 61 63 68 65 70 65 72 69 73 63 6f 70 |be.cacheperiscop| 00000020 65 02 6d 65 00 00 01 00 01 |e.me.....|
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 |
|---|---|---|---|---|
| DNS | 53/udp | 4 | 1 | 28 to 54 |
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
- 53/udp DNS4
DNS questions
DNS record types
- A4
Networks
- AS132203 Tencent Building, Kejizhongyi Avenue from 1 source4
Countries
Source addresses (unverified)
| Address | Network | Cc | Sends | Datagrams | Last seen (UTC) |
|---|---|---|---|---|---|
| 43.134.56.104 | AS132203 Tencent Building, Kejizhongyi Avenue | SG | DNS | 4 | 2026-10-10 14:44 |
Latest datagrams
payload bytes
00000000 df 66 01 00 00 01 00 00 00 00 00 00 05 70 72 6f |.f...........pro| 00000010 62 65 0e 63 61 63 68 65 70 65 72 69 73 63 6f 70 |be.cacheperiscop| 00000020 65 02 6d 65 00 00 01 00 01 |e.me.....|
payload bytes
00000000 5c 02 01 00 00 01 00 00 00 00 00 00 05 70 72 6f |\............pro| 00000010 62 65 0e 63 61 63 68 65 70 65 72 69 73 63 6f 70 |be.cacheperiscop| 00000020 65 02 6d 65 00 00 01 00 01 |e.me.....|
payload bytes
00000000 8a 97 01 00 00 01 00 00 00 00 00 00 05 70 72 6f |.............pro| 00000010 62 65 0e 63 61 63 68 65 70 65 72 69 73 63 6f 70 |be.cacheperiscop| 00000020 65 02 6d 65 00 00 01 00 01 |e.me.....|
payload bytes
00000000 d8 dd 01 00 00 01 00 00 00 00 00 00 05 70 72 6f |.............pro| 00000010 62 65 0e 63 61 63 68 65 70 65 72 69 73 63 6f 70 |be.cacheperiscop| 00000020 65 02 6d 65 00 00 01 00 01 |e.me.....|