"Detecting" Malware after the fact strikes me as similar to not
detecting it at all. In most cases I've seen, Malware was granted
permission to install by a careless click, which is understandable, as
some Malware authors are very clever.
For most cases, a combination of MS Security Essentials and
Malwarebytes will suffice, along with a dose of common sense.

On Fri, Sep 7, 2012 at 11:07 PM, Robert Lendrim <[log in to unmask]> wrote:
> A few months ago 4 of my home computers were hit with some malware. Each
> machine had Spybot installed and each had one reputable free antivirus
> program, not all the same. I was able to rescue 2 of the drives and had to
> use clone backups to restore the other two. Spybot was the only utility to
> detect the malware. I reported the malware to one of the antivirus
> companies. The responder apologized for missing it, and made a statement to
> the effect "One antivirus program will not find everything". I continue to
> keep one antivirus and Spybot "active" on each machine. I also keep at
> least one other antivirus "dormant" for periodic "second opinions". Maybe
> overkill, but it has worked pretty well for me

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