Android Composite ADB Interface Windows 8 driver for iRulu U2? I downloaded and installed via Android SDK Manager (rev 24.2) the latest Google USB Driver (rev 11).

adb devices works well with my Nexus S G4 (Android 4.1.2) and is able to list it without any problem.

adb devices cannot detect my iRulu U2 (Android 4.4.4).

On my PC's Device Manager it shows up as MT65xx Android Phone:



iRulu's website is of no help: 
The list on http://www.irulu.com/DownLoad/driver is cryptic and when I finally guessed a search term "driver", it found one item: 

MTKDriver_Auto_Installer_EXE_v1.1236.00 

I downloaded it but upon attempt to install it, Device Manager's wizard complains that it is unsigned.

Any idea where I can find a USB driver that works with the iRulu U2?
Answering my own question:

After much search I found this post by Koushik Dutta who kindly shared his own developed Universal ADB Driver.

In there I found the installer (UniversalAdbDriverSetup6.msi) and the source code for it.

After running it, my iRulu U2 is now recognized by Device Manager as HTC Android Interface: