Large-scale brute-force activity targeting VPNs, SSH services with commonly used login credentials - eviltoast
Cisco Talos would like to acknowledge Anna Bennett and Brandon White of Cisco Talos and Phillip Schafer, Mike Moran, and Becca Lynch of the Duo Security Research team for their research that led to the identification of these attacks. Cisco Talos is actively monitoring a global increase in brute-force attacks