Hi,

If endpoiont protection did not detect it, how did you come to know about this specific infection? Are you using any third party tools as well?

If you also seem to know the file that has been infected, you can submit the file to the security response team for analysis.

Please follow the steps below:

http://service1.symantec.com/support/ent-security....

Aniket

Update latest virus
definition ad give a scan in safe mode.

i was using third party antivirus of "Spyware doctor". the spyware doctor caught the virus but couldn't delet it. then i installed Symantec EPP 11.0 license version. but after deployment of Symantec EPP 11.0, it didn't catch  "Spyware.possible_website_hijack" virus on my machine.

Regards,

Shakeel.
 

Scan the pc in safe mode with latest updates if
not helps follow the instructions in the KB which is suggested by Aniket
Amdekar 

We are running EPP 11 on our desktops, and have encountered a nasty virus/spyware over the last week that Symantec has't detected, or when it does, it's too late. Even running in safe mode hasn't cleaned it out, and it stops 3rd party scans from running, like MalwareBytes, even in safe mode. Our senior techs, who pride themselves on being able to clean out PCs, had to throw in the towel and re-image the laptop.