Ukrainian Network FDN3 Launches Massive Brute-Force Attacks on SSL VPN and RDP Devices

Cybersecurity researchers have flagged a Ukrainian IP network for engaging in massive brute-force and password spraying campaigns targeting SSL VPN and RDP devices between June and July 2025. The activity originated from a Ukraine-based autonomous system FDN3 (AS211736), per French cybersecurity company Intrinsec. "We believe with a high level of confidence that FDN3 is part of a wider abusive


source https://thehackernews.com/2025/09/ukrainian-network-fdn3-launches-massive.html