Threat Intelligence Briefing

Global threat volume deviated significantly from baseline, spiking 117.4% vs the previous period to 3042 events. This surge is driven by a major increase in malware C2 (936) and brute force activity, primarily from Dutch (ASN 20473, 16276) and Russian (ASN 48347) infrastructure. Nordic activity remains stable and routine; Sweden (12 events) and Finland (6) show typical low-volume brute force and web attack patterns consistent with their 7-day averages. The concentrated attack patterns from specific ASNs represent the primary operational concern, not the individual ephemeral IPs. Consider implementing temporary rate-limiting rules for traffic originating from the top contributing Dutch and Eastern European ASNs, particularly targeting SSH and web service ports. This will mitigate the brute force campaign without requiring permanent block decisions. Deprioritize individual IP blocking from the top threats list as these are likely transient.