Trojans are malicious applications that pose themselves as legitimate software in order to trick users to install them. Once on the victim's machine, it may run any number of malicious process to steal vital information or inflict damage to other software.
This is a trojan that is often installed in dollarrevenue bundles. It leaves 2 dll files in the system32 folder called durvil1.dll and durvil2.dll. Once installed, it will prompt the user to a website to enter in their e-mail address.