All news with #brute force tag

🔎 Security researchers observed a large surge in network scans probing Cisco ASA login portals and Cisco IOS Telnet/SSH endpoints, with GreyNoise recording two major spikes in late August 2025. The second wave on August 26, 2025, was largely (about 80%) driven by a Brazilian botnet using roughly 17,000 IPs and overlapping Chrome-like user agents that suggest a common origin. Administrators are urged to apply the latest patches, enforce MFA for remote ASA logins, avoid exposing management pages and services directly, and use VPN concentrators, reverse proxies, geo-blocking, and rate limiting to reduce risk.

🔒 Intrinsec reports that Ukraine-based autonomous system FDN3 (AS211736) conducted widespread brute-force and password-spraying campaigns targeting SSL VPN and RDP endpoints between June and July 2025, with activity peaking July 6–8. The firm links FDN3 to two other Ukrainian ASes (AS61432, AS210950) and a Seychelles operator (AS210848) that frequently exchange IPv4 prefixes to evade blocklisting. Intrinsec highlights ties to bulletproof hosting providers and a Russian-associated Alex Host LLC, stressing that offshore peering arrangements complicate attribution and takedown efforts.