Many worms delete Registry entries or write absurd information there. And SP3 does the same. The result is that the device manager no longer shows any devices, network connections fail, and thousands of new keys starting with '$%&'()*+,-' are dumped in the Registry. It's no wonder that security programs classify SP3 as hazardous malware.

In fact Norton Internet Security 2008 immediately tries to remove SP3. In
the CHIP forum, we have also found instructions regarding products by Kaspersky and Trend Micro. A remedy is provided by the patch that you can find on the Microsoft website using the search string 'KB953979'. Symantec also offers a patch to its customers. Ask the manufacturer for the file 'SymRegFix.exe' if you face similar problems.