MalwareBytes and Avast ?

Hello,

Have a few questions regarding the AV I use, Avast Free:

I did a full system scan, boy, it takes a long time, and it found two
instances of win32:vitro.

Questions:

a. How come it did not prevent this viruse from entering ny system in the
first place ?
I do have all of their "Shields" turned on.

b. I have both instances that it found quaranteed in their "Chest".
It describes this as being a perfectly safe to leave them.
Is it ?

Apparently, there is no option for totally removing it that I can find.
Is there a way to get it out of the Chest, and totally removed ?
Assuming there is somew way, is this better than just leaving in their Chest ? Why ?

c. I also did a Boot scan. How is this different from their Full System Scan ?

d. Their are 2 Users on the PC.
Is it necessary to do the Full System Scan, and the Boot Scan, separately for each User, or it scans everything on the PC, irrespective of which User is logged in ?

Much thanks,
appreciate the help,
Bob

Now run Full Scan with Malwarebytes

Hello,

Would appreciate your advice as to whether I should purchase the $25
version of MalWare Bytes. It's not the $, it's that I don't want another
"protection" software running and installed if it won't likely do me any good.

History.

I have Avast Free for my AV protection now.
Apparently the virus win32:vitro got into my system.
Avast, therefore, did Not stop it.

I did a full scan with Malware Bytes, and it did Not find the virus.

A Full scan with Avast Did find it, which is somewhat surprising as it did not stop it from entering in the first place; hard to understand.

Any thoughts on ?
Should I purchase and install Malware Bythes ?
How come it missed it when I scanned with it ?

Much thanks for help and opinions; appreciate it.

Bob

Sorry to disagree but I think you will find that Malwarebytes scans for all types of infections as the name would suggest. "Malware" is a generic term used for all types of malicious code.

This is the second post I've seen today about Avast detecting win32:vitro. It is either coincidence or a f/p.

If truly infected with win32:vitro another name is Virut. The only safe recovery is backing up your data, format and reinstall the operating system. See miekiemoes' Blog: Virut and other File infectors - Throwing in the Towel?.