AntiVirus Soft Virus attack - MBAM found it - Avast didn't

I got hit 2x by Antivirus Soft Virus. Avast missed it but I was able to clean it in safe mode with MBAM

was able to clean it in safe mode with MBAM
remember to update and also run MBAM in normal mode as this is when it works best ( http://forums.malwarebytes.org/index.php?showtopic=5590 )

Fake antivirus overwhelming scanners
http://news.techworld.com/security/3203072/fake-antivirus-overwhelming-scanners/

Is the same true for avast! scans?

I haven’t tried scanning for stuff in safe mode with avast!

I have read safe mode scans are meant to be fallback plans, if regular fails to remove, or if malware locks you out of your desktop/damages system

If you have files that are difficult to remove, then you use safemode or boot scan

" Avast Antivirus offers a “boot time” virus scan of your PC. This allows the antivirus engine to scan all of the files on your hard drive before any other programs load - useful in cases where you have an infection which cannot be cleaned because the “file is in use”

In malwarebytes you also have an extra tool " FileASSASSIN "