Kimsuky Group’s New Backdoor (HappyDoor)

Kimsuky Group’s New Backdoor (HappyDoor)

Table of Contents Overview Distribution Method and Changes Distribution Method Changes of HappyDoor Detailed Analysis Summary Characteristics Registry Data Packet Data Packet Structure and Server Operation Method Features Information Theft Backdoor Conclusion This report is a summarized version of “Analysis Report of Kimsuky Group’s HappyDoor Malware” introduced in AhnLab Threat