Redirect viruses will often modify the hosts file located (usually) in C:WindowsSystem32driversetc
If you have additional entries in this file, it is likely because of viral activity. Check the last modified date on it as well, as that is usually a dead giveaway that it have been compromised.
If you have additional entries in this file, it is likely because of viral activity. Check the last modified date on it as well, as that is usually a dead giveaway that it have been compromised.