Yanbian Gang is a Chinese cybercrime group that became active in 2013, primarily conducting financial fraud operations against South Korean organizations and individuals. The group specializes in targeting banking and payment systems, often impersonating legitimate services to illegally acquire funds from victims. This group is distinguished by its focused and persistent use of mobile banking malware and social engineering tactics to achieve its financial objectives. They are known for their structured organization, which includes specialized roles such as malware creators, translators, and money mules, enabling them to continuously evolve their attack methods against their primary targets.