Threat Intelligence Briefing

Global threat volume increased by 49.5% compared to the previous 6-hour period, a significant deviation from typical baseline activity. This surge is primarily driven by malware C2 (1830 events) and attacks (1474 events), with SSH brute force remaining a top vector. The top threat-originating countries remain consistent (US, GB, AU). Nordic countries show stable, low-volume activity consistent with their normal baselines, with Norway (7 events) and Sweden (6 events) seeing routine attack and web-based brute force attempts. Focus on the global pattern, not individual IPs. Given the substantial global increase, consider temporarily tightening rate-limiting rules for SSH connections and outbound traffic to known C2 CIDR blocks, particularly from ASNs hosting high-volume threat actors. The SSH brute force cluster from DigitalOcean (ASN 14061) and Russian networks requires continued monitoring but does not warrant new immediate action beyond existing controls.