Threat Intelligence Briefing
Analysis period: 2025-11-04T12:00:02.468218 - 2025-11-04T18:00:02.468218 (6 hours)
Executive Summary
Globally, threat activity increased 19% in the last 6 hours, primarily driven by SSH brute-force attacks. The majority of activity originates from Romania, India, and Russia. A single Swedish IP was observed conducting SSH brute-force attempts, representing a minimal Nordic presence. No significant abuse of specific hosting providers or ISPs was observed. Infrastructure analysis revealed no disproportionate targeting of datacenter vs. residential IPs, and no Tor exit node activity was detected.
Given the prevalence of SSH brute-force attempts, focus monitoring on networks originating from RO, IN, and RU. Prioritize detection rules for anomalous SSH login attempts and consider rate limiting. Closely monitor IP ranges 45.135.232.0/24 (RU) and 80.94.95.0/24 (RO) due to high repeat offender activity. Track emerging brute-force patterns for potential credential stuffing or dictionary attacks.