It's not from ISO, because I had it running for about 2 weeks or so..
And performed scans with MBAM full scan several times before and didn't catch even one infection.
Performed several times Mcafee full scans as it's my current real-time AV.
Performed random on-demand scans with Windows Defender.
On-line scan from ESSET.
Yeah, I may look like paranoic for just 2 weeks doing so many things..
And now I had reinstalled windows for several reasons:
1- I had reinstalled windows and updated drivers and got System Image which I didn't first time.
2- Forgot my admin password to Defncewall

Now after reinstall I use it again.
3- to get rid of junk I got while testing which programm will work beter for me on win 7, now I now which to install for particular task.
4- Was testing if my Original Factory Recovery portion is working (seems it's not working after Windows 7 install

)
Anyway after getting that, I formatted, burn new disk from another laptop (but from the same ISO) and reinstalled again.
First task installed McAfee Suite. And reinstalled drivers got system image (but just on other partion on the same drive so it is little bit pointless). Created Several restore points.
Haven't scanned with MBAM yet, will do it soon.
And infections were founded when I performed manual scan, ( It was when I installed all drivers and necessary programs and was updating MBAM and just pressed full scan

)
P.S. And I can't see anything weird about system performance.
When I got results of scan I did perform Full scan with McAfee (results: clean)
Scan with HitmanPRo3 (results: clean)
Quick scan with Windows Defender (results: clean)
I think new scan with new and updated MBAM should show if those were False positives or not, yes?