Originally posted here by MoonWolf
Only this was a nasty kind of breed. Most prominant was changing the desktop to some item telling him the computer was infected (really ??)

No name was given. A link led to a site telling him to pay money for a spyware/adware remover.
If the desktop read "you're in danger" then this is a hijack we started seeing at SFDC in early June. There is an uninstaller located at http://www.smart-security.info/removal.html

Just FYI in case anyone else runs into it.