What Is The PUADlManager:Win32/Bandoo?

I only have the M.D.A. as my only line of defense,and weird as it may sound to you?,the dangerous downloaded jzip program went through with no issues whatsoever, and then sent the downloaded program to VirusTotal.com,after the scan was completed,it was showing a red sentence beside the M.D.A. ?.My installed M.D.A. has no issues with the older or newer Jzip file that got downloaded and installed ,as i can continue on from there as normal.As soon as i moved to one of the other free antiviruses on offer,it didn't allow the Jzip file to get downloaded at all,as shown on the screen then got removed within seconds, after the explanations showed up.An already installed Jzip files was also instantly detected and removed ,after it was deemed infected by the installed antivirus.I thought i was promised a free antivirus that would of included the full detections and removal of what is listed in the title above,but sadly even at that level it's quite normal to explore that all the way.I tried the M.R.T. and the offline scanner and both had the same end results as the M.D.A.,by not even noticing it was in my downloads folders?.Where is this major undetection of dangerous downloaded downloads coming from?