Suspicious files not detected by AVAST but...

there are two suspicious files on my PC not detected by AVAST but reported by “360 total security” as “HEUR/QVM03.0.Malware.Gen” and “HEUR/QVM42.1.Malware.Gen”. The files are drivers for an USB device. About a year ago, my PC was infected after installed one of these driver (I did a complete restore of the system because it was completly infected and there was no way to repair it).
Is there a way to upload the suspected file for an accurate analysis ?

Here is the report:
FILE1:
Type:
HEUR/QVM03.0.Malware.Gen

Scan Engine:
360 Cloud Scan Engine

File path:
C:\toolbx\WIZnet\EG-SR-7100A Configuration Tool\7100A_C.exe

File size:
72K (73,728 Bytes)

File version:
3.01.0008

MD5:
9ee7b4528568b17d0a15eb398cbcdff1

Suggestion:
Quarantined files

FILE2:
Type:
HEUR/QVM42.1.Malware.Gen

Scan Engine:
360 Cloud Scan Engine

File path:
C:\toolbx\WIZnet\FootSwitch V6.5.2.exe

File size:
3.03M (3,180,543 Bytes)

File version:

File description:
FootSwitch V6.5.2 Setup

MD5:
d36d8d8af015c3e2897a2ba471491261

Suggestion:
Quarantined files

Upload and test file(s) at www.virustotal.com if tested before, click rescan for a fresh result
Post link to scan result here

Read this
https://usblog.kaspersky.com/multiple-antivirus-programs-bad-idea/2496/

For USB protection use this free program MCShield http://mcshield.net/

Here are the results :

https://www.virustotal.com/it/file/fe6e68a89ff3ce751b23dbe59b16c48d8e57e796b86623e7d5baa86d96f31c9c/analysis/1453209567/

https://www.virustotal.com/it/file/8696c2b0327a117af6d894be9b53a72f0f70434739ea60c57a41ba6f1aa93a7e/analysis/1453208921/

The results do not indicate any infections, but I still not trust it at all.

However I’m not using multiple AV in my system, I’ve a PC with AVAST running and another PC (windows XP) where AVAST didn’t install ( see Ticket ID: 142216 ) , so I use a free antivirus there.

The USB device I’m talking about was not a disk but something similar to a mouse.

Question: Do I need MCShield even if AVAST Premier is running on my PC ? Don’t AVAST protect from infected USB keys?

so seems like a FP from 360 total

Question: Do I need MCShield even if AVAST Premier is running on my PC ? Don't AVAST protect from infected USB keys?
No security program have 100% detection or zero false positives

MCShield is a special tool that only target those malware types that use removable device to spread
It only scan root of the drive, so when you plug in a full 1TB disk the scan only takes seconds, the storaged files is a job for your AV to scan

all regular forum users here use it, and this forum section is full of solved cases where the malware removal team have cleaned infected drives with it. The program use no system resources as it is dormant untill a USB device is plugged in, then it pops up, scan (and clean if anything is found) and goes to sleep again