Commencing April, we noticed a surge in phishing spam emissions leveraging residential proxy networks, akin by scale and speed to the heydays of botnet spam in the 2000s. ๐ ๐ค
Looking closer, we assess this is a major shift of a persistent China-nexus threat actor predominately targeting Japan, emancipating themselves from disseminating phishing via subnets at several branches of China Telecom and China Unicom. โคต๏ธ
