Today we’re releasing our research paper on the operations of the Yanbian Gang—a Chinese cybercriminal group that use mobile malware to siphon off money from account holders of South Korean banks. They are able to transfer up to US$1,600 worth of local currency from victims’ accounts every single day since 2013.

REFERENCE:
https://blog.trendmicro.com/trendlabs-security-intelligence/mobile-malware-gang-steals-millions-from-south-korean-users/