Threat Intelligence Briefing

Observed threat activity has sharply decreased by 93.6% compared to the prior six-hour period, with a total of 119 threats originating from 75 unique IPs. SSH brute-force attempts dominate, accounting for 97.5% of all malicious activity. Russia remains the top originating country with 16% of attacks, followed by the Netherlands (11.8%), China (10.9%), Romania (9.2%), and Vietnam (9.2%). Within the Nordic region, Sweden saw minimal activity, with only one recorded SSH brute-force attack. No significant malicious activity was observed originating from Tor exit nodes. Given the prevalence of SSH brute-force attacks, we recommend monitoring ASNs associated with the top originating countries, particularly those hosting infrastructure providers. Focus on detecting anomalous SSH login attempts and consider implementing rate limiting. The sudden drop in overall activity warrants further investigation to determine if it's due to mitigation efforts or a shift in attacker tactics.