AMCIS2.DLL is a library file that is responsible for implementing main parasite functions and running its destructive payload. The AMCIS2.DLL file cannot run by itself and therefore needs to be loaded with the help of some executable files. However, certain parasites reconfigures the operating system or installs AMCIS2.DLL as a plugin, so that the system or certain applications automatically load it on startup.
The AMCIS2.DLL file is installed and used by adwares
Aureate.Radiate and
Aureate.Radiate.A and SPAM tool
Aureate Group Mail.
Please note that the AMCIS2.DLL file actually may be a fully legitimate part of the operating system or legitimate software. Often parasites use files with unsuspicious names, but malicious functionality. You should always carefully check the file before deleting it. It may not be related with malware, but can be required by your essential programs to work properly.