EudorIA Threat Observatory

165.154.164.21

Technical source observed on EudorIA perimeter controls. All the events listed were blocked, contained or detected by the defensive systems.

Confidencehigh1 catalogued events

First observation31/08/2026 08:44

Last observation31/08/2026 08:44

Controls areaFIREWALL

Maximum rule level14/20

Network context

Estimated origin

Country: Germany (DE)
City: Frankfurt am Main
ASN: AS135377
ASN operator / holder: UCLOUD-HK-AS-AP - UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED, HK
Announced prefix: 165.154.164.0/24
Reverse DNS: PTR record not published

Last activity

Public destination: eudoria.it
Service: TCP porta 5523 (servizio non catalogato)
Rule: 100703
Technical reason: OPNsense blocked traffic from a source present in the EudorIA malicious IOC list: 165.154.164.21.
Outcome: Blocked / detected

Minimised history

Last 1 publishable events

31/08/2026 08:44

FIREWALL

high

OPNsense blocked traffic from a source present in the EudorIA malicious IOC list: 165.154.164.21.