Is malware covered

[TungstenX]

Good day all,

Yesterday I had to remove MagniPic and a week  ago I had to remove Jdj.openmace.net from our home PC.  I'm running Avast (free) and thought that I would upgrade to one of the paid version to catch this malware (both looks like they work the same) before it "installed" itself rather than running a few malware removal tools and Avast Boot scan.

But I see that the Antivirus function includes malware and is included in the freeware version, thus how did Avast let this slip by twice or not clean it properly?  Why should I upgrade then? Will SafeZone, Sandbox, Firewall or Anti-spam prevent this?   

What can I do to prevent the other family members (standard windows users) to infect this PC?

Best regards,
André

[Pondus]

Jdj.openmace.net is some adware / browser hijacker classed as PUP. usually some crap that comes bundled with free programs you download
PUP = not virus / Possible Unwanted Program ..... avast PUP detection is default off all places exept for in boot scan

i recomend running a quick scan with Malwarebytes and let it remove all PUP it find
then cleaning your browsers with AdwCleaner

you can download Malwarebytes here  http://forum.avast.com/index.php?topic=53253.0  make sure it is updated, run quick scan, then make sure evrything detected is marked for removal and click remove selected button
download AdwCleaner here  http://www.bleepingcomputer.com/download/adwcleaner/   run it and click clean button when scan is done

you may attach the logs here.....