Hi, 

I'm having this issue, I can't access Google, Gmail, Youtube and Facebook, the rest of the Internet I can see it.

I have done a full scan twice with Endpoint Protection and no virus have shown.

When I try to access either of those pages I get one of the following errors:

- A screen asking me to update flash player, with a link to burosys.net/adobe_flash_player_v12.exe which when at first I clicked Endpoint told me it was a virus, then I realize it was not an Adobe or real warning to update flash player, this happens mostly on Facebook and Youtube.

-A 102 Error Conection Refused

-DNS error, very few times I have got this one, but when getting this one it was funny that all other pages were displaying, I was able to browse the rest of the internet as in the other two errors but when I went to pages with adwords these will not show up.

Other computers on my network can access with no problem these pages. it happens regardless of the browser I use. I have already restart my computer several times, restart my router/dsl modem, run 2 full scans with Endpoint Protection wich is up to date with last definiton from Jan 5th, 2013. I have check my host file and it's ok no unfamiliar entries. 

This could be the most productive virus (if it's one) by keeping out of facebook and youtube, but I have my email on gmail :(

Thanks in advance for any help.

HI,

Can you try to other IE browser ?

Is your system infected? Symantec tools to help clear an infection

https://www-secure.symantec.com/connect/forums/your-system-infected-symantec-tools-help-clear-infection

Clear the DNS Cache

1. Open the Start menu.
2. Go to Run.
   • If you do not see the Run command in Vista, search for "run" in the Search bar.
3. In the Run text box, type: ipconfig /flushdns
4. Press Enter or Return, and your cache will be flushed.

Have you checked your SEP risk logs? Also check your Security log to see if the IPS was blocking access. It may have detected a risk and blocked access.

 Viruses infect the boot files...plz cheak from CMD whether you can ping to  youtube,facebook,gmail etc... if you can but its not giving reply on your broswer... then surly you need to boot scan your computer...  :-) 

Great advice!

If you have a router, I would also double-check that it is still set with the correct DNS values for your environment. Poisoned DNS may be redirecting those URLs to that fake Adobe download, and blocking all others.

sandra