what does avast! do? what do all of the virus stoppers do?

Avast Free Antivirus / Premium Security
1

I ran a complete (several hours) scan of my computer simultaneously with [1]Avast!, 2] Microsoft security essentials and 3]STOPzilla.
Avast came up with 1 bad piece of spyware. How did it through? MSE came up with 1 bad virus. Also, how did it get through?
STOPzilla came up with the following:
1 instance of WORM.LEAVE.BD
2 instances of INET2000
3 instances of VUNDO.AF
2 instances of SWREG
1 instance of MARKETSCORE
3 instances of IBIS.WEBSEARCH
1 instance of SPY DEVESTER
plus
cookies of ADDTHIS.com, GIGYA.com, MEDIADEGREES.com, QUANTSERVE.com and Tag.admeld.com

Also, the question is how did it get through STOPzilla.and…what does it mean? and…what do I need to keep my laptop clean? Is it all a con job?

2

Never run/install two AV as this can create all kinds of mysterious windows errors and false positive detections
and never run simultaneously scan

STOPzilla.com, Rogue software or not, you decide.
http://issviews.com/blog/stopzilla-com-rogue-software-or-not-you-decide/

Never install two antivirus (see reply from quietman7)
http://www.bleepingcomputer.com/forums/index.php?s=7c8217673a726b92cfc91ecfd4294a29&showtopic=260844&view=findpost&p=1441638

so remove MSE and stopzilla and use avast! and Malwarebytes www.malwarebytes.org

Tracking cookies are not malware, and you can clean/empty the cookie folder with CCleaner
http://en.wikipedia.org/wiki/HTTP_cookie
http://superantispyware.com/supportfaqdisplay.html?faq=26

and no security program have 100% detection

3

+1

Especially STOPzilla! :wink: