Malware
Maintools.js
Expects a parameter to run: needs to be started as 'maintools.js EzZETcSXyKAdF_e5I2i1'.
Maintools.js is a JavaScript malware family operated by Turla.
Background
It requires a parameter in order to execute, and must be launched as 'maintools.js EzZETcSXyKAdF_e5I2i1'.
Source: Malpedia (Fraunhofer FKIE).