You might check your host file, and make sure it wasn't inadvertently placed in there, you'll never get to it if it is.
Locations are as follow ~
Windows 2000 - C:windows\system32\drivers\etc
Windows XP - C:\windows\system32\drivers\etc
Windows NT - C:\winnt\system32\drivers\etc
Windows Vista - C:\windows\system32\drivers\etc
Start > Run > regedit , or windows explorer will get you there as well. Open with any text editor and run
through the list looking for eastmall.net. If it is in there, then you can remove it and save, alternatively, to prevent whatever program placed it there from doing it again, just comment it out with a "#" - the "