Emotet is an advanced modular banking trojan that continues to be of major concern to the banking sector. It is distributed primarily through malspam and very difficult to combat due to its ability to quickly spread through a network. It is one of the most destructive and costly malware that affect the state, local, tribal and territorial (SLTT) governments and can cost upwards of $1 million per incident. If a system gets infected it must be immediately removed from the network, ensure that a privileged account is not used to access it and that it is reported to MS-ISAC (Multi-Slate Information Sharing and Analysis Center).
Relevant URL(s): https://www.us-cert.gov/ncas/alerts/TA18-201A