VERY IMPORTANT

IBM's X-Force has been tracking large-scale phishing campaigns distributing the Grandoreiro banking trojan, likely operated as a Malware-as-a-Service. The malware targets over 1500 global banks, enabling banking fraud in over 60 countries. The latest variant features major updates, including string decryption and domain generation algorithm enhancements, and the ability to spread through Microsoft Outlook clients. Campaigns impersonate government entities in Mexico, Argentina, and South Africa, indicating a change in strategy and global expansion since recent law enforcement actions against the operators.