Emotet is a very mature botnet. The danger of this botnet is that the groups behind it often sell infected devices to other hackers.
For example, hackers buy infected devices to install ransomware, some use phishing to steal corporate information, and some are used to launch cyber attacks.
Europol calls the Emotet botnet the most dangerous malware in the world, and its main infrastructure has been destroyed by a joint law enforcement operation at the beginning of the year.
But 10 months after disappearing, Emotet is now making a comeback with the help of TrickBot malware, and researchers are currently paying close attention to the development of Emotet.