yes firefox, IE and chrome open that flash popup when i try www.google.com
in today i install kaspersky pure 3.0 and scan all disk but it not find anything…
TDSSKiller log in attach
Do you use a router, and do any other computers that use it experience the same problem ?
First though we will reset the dns cache
Warning This fix is only relevant for this system and no other, using on another computer may cause problems
Be advised that when the fix commences it will shut down all running processes and you may lose the desktop and icons, they will return on reboot
Run OTL
[*]Under the Custom Scans/Fixes box at the bottom, paste in the following
https://dl.dropbox.com/u/73555776/OTL_Fix.GIF
:Commands
[CREATERESTOREPOINT]
:Files
ipconfig /flushdns /c
ipconfig /release c
ipconfig /renew /c
netsh int ip reset /c
netsh winsock reset /c
:Commands
[resethosts]
[emptytemp]
[Reboot]
[*]Then click the Run Fix button at the top
[*]Let the program run unhindered, reboot the PC when it is done
[*]Open OTL again and click the Quick Scan button. Post the log it produces in your next reply.
i install bitdefender internet security. scan all disk but not find anything…
the flash popup still appears 
dont install any programs while essexboy is working your case… or you mess up the hole cleaning procedeure
YES! you find. thank you very much essexboy! virus is in my modem! i reset modem and no flash popup in browsers for now…
You reset your modem or your router? or is it a combo?
my modem is:
http://www.tp-link.com/lk/products/details/?model=TD-W8901G
i use reset button for hard reset.
Grand it explains why it was not present on your computer, any further problems
It’s a combo… cool… make sure you update your firmware if it isn’t already updated.
You may also want to report this to them. Infections of routers are rare (as they are proprietary and specific) and indicates someone may be targeting them directly.