CNET's Download.com team scan all software titles they receive for viruses and spyware before offering them for downloads.
You say Stealth, but no details of what you have found, nor what scanners you used to find them.
We do on occasion see "False Positives" reported, but this happens with all anti-virus scanners at times. A comprehensive check at VirScan and Jotti's virus scan against a whole range of anti-virus scanners confirms the files are free of infection.
Stealth malware is a particular type of malware, and I am surprised that you find so many of this one group.
Mark
I've found that too many of CNET's software downloads come with stealth malware that installs and runs without your knowledge on your computer. Some of it is quite disruptive and is resistant to ordinary uninstallation methods. I no longer trust CNET's advice on software. Apparently they don't check for these things.

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