Simple and not too difficult partial fix for the "mtool_new.exe" in ie9 alleged virus and the "B0460d01" alleged virus in Firefox that my Norton 360 stops.
With this fix you will at least not get the little bottom-right message boxes saying they been removed.
The source of the problem appears to be ytimg.biz wanting to do things when you open the two browsers, triggered by "mtool_new.exe" or triggering "mtool_new.exe."
I cannot stop "mtool_new.exe", yet, appearing in Startup in msconfig, but I can stop it's effect.
In ie9 I decide to block all access to many versions of ytimg.biz website, in Internet Options.
In Firefox I had to download an "Add On" to block a website, as the facility does not exist "as is". I used Block Site 1.0.9. and once again I blocked many ways of accessing ytimg.biz.
Since I did this, one day now, I do not get any N360 messages about blocking and removing these two viruses. So it would appear that blocking website "ytimg.biz" is helping.
My spelling may not be perfect, however I think I have blocked:
http:\\ytimg.biz
www. ytimg.biz
*ytimg.biz
*.ytimg.biz
Try anything you like as long as it ends with ytimg.biz !
Nothing else is happening, nor is anything else going wrong, i.e.. I cannot see any negative side-effects of this block.
As to those responsible for ytimg.biz and mtool_new.exe: I'll get you, you b****rds...
If anyone, including Mr Norton, has anything constructive to add or suggest, please do so.
Hope this helps a bit.
[Edit: Removing hyperlink to a website to conform with the Participation Guidelines and Terms of Service]