Hi,
Thank you for posting in Symantec community.
I would be glad to answer your query.
Adware:W32/FunWeb is a family of adware programs that are used to display unsolicited advertising content, often through the use of pop-up windows. FunWeb variants are often bundled with other applications, games and browser plug-ins. Some variants of FunWeb may also redirect users’ browser home page and download additional code functionality.
Check this PDF to know more about adware and spyware.
http://www.symantec.com/avcenter/reference/techniques.of.adware.and.spyware.pdf?src=symsug_us
SEP is not taking action as you think it's a spyware? Get it confirm with the help of Symhelp tool.
Using Symantec Help (SymHelp) Tool, how do we Collect the Suspicious Files and Submit the same to Symantec Security Response Team.
Could you please work on this Article for Web Submission Process : TECH102419
Before that, make sure this:
1) SEP is updated with the latest definitions and with all three features (AV/AS, PTP & NTP)
2) SEP installed machine is having latest windows patches and service packs.
3) Use Symantec power eraser tool to scan the system.
4) Scan the full system in safe mode.
Check this steps also to remove funwebproducts
http://www.funwebproducts.com/uninstall.html
It's worth to check this discussion as well : http://forums.cnet.com/7723-6132_102-103207/funweb-products-how-to-remove-isolated-registry-entries/