Analysis of Ukraine's DDoS Attack

CadoSecurity provided an analysis of the Distributed Denial-of-Service (DDoS) attack impacting Ukrainian "banks, government and military websites" on February 15th and 16th, 2022. The scale of the attack pertaining to banks PrivatBank and Oschad, was identified to be moderate in severity as the sites were able to return to operating levels within a few hours. A review of the attack infrastructure by Ukrainian CERT, 360Netlab and BadPackets identified the botnet source as Katana botnet, which is a variant of Mirai botnet. The attack has been attributed to Russia from the U.S on Friday, February 18th, 2022 to which Russian officials have denied.