"Last week, the Internet Storm Center, a group of security professionals
that track threats on the Net, flagged a flaw in how a common Microsoft
Windows utility and several anti-spyware utilities detect system changes
made by malicious software. By using long names for registry keys, spyware
programs could, in a simple way, hide from such utilities yet still force
the system to run the malicious program every time the compromised computer
starts up."

http://www.securityfocus.com/news/11300

Im