IP address 81.45.181.135 has been flagged in 350 abuse reports across 4 independent threat intelligence sources, resulting in a threat score of 100.0/100 (critical risk). The primary activity associated with this IP is aggregated threat, along with high threat, malware c2, moderate threat, severe abuse, ssh bruteforce, suspicious activity.
This IP is geolocated in Spain and belongs to the network Telefonica De Espana S.a.u. (AS3352). Reports span from 2024-07-31 to 2025-12-20.
Assessment: With 350 abuse reports, 81.45.181.135 shows persistent malicious activity that has been flagged by multiple threat intelligence feeds. The IP has been observed conducting automated SSH login attempts against internet-facing servers, a technique commonly used to gain unauthorized access to systems.