Threat Intelligence Briefing

Global threat volume increased significantly by 48.9% compared to the previous 6-hour period, representing a clear deviation from typical baseline activity. The surge is primarily driven by a major spike in malware C2 traffic (1259 events), alongside sustained SSH brute force campaigns originating from consistent Eastern European ASNs (RU, RO, BG). Nordic regions remain stable with minimal activity (FI: 11, SE: 6 events), consistent with their 7-day average and representing routine background scanning. The top attack IPs are part of known, persistent clusters rather than a new emergent threat. Focus defensive actions on the malware C2 infrastructure and SSH brute force patterns from the identified geographical clusters, as individual IPs are ephemeral. Consider implementing temporary rate-limiting for SSH traffic from Eastern European CIDR ranges associated with these campaigns. Deprioritize the low-volume Nordic activity, which aligns with expected regional noise.