Platinum is one of the most technologically advanced APT actors. In 2018, it was seen using a previously unknown steganography technique: its backdoor hid all communication with its C&C server by using text steganography.
Active since at least 2009, this group is one of the most technologically advanced APT actors. It typically targets government organizations, intelligence agencies, and defense institutes in the APAC region. In 2018, it was seen using a previously unseen steganography technique to conceal communication, and in 2019 it was found deploying a new custom backdoor. Target systems are typically infiltrated via spearphishing.